LANCOM 464XLAT Multi WAN VPN Gateway Instruction Manual
- July 31, 2024
- LANCOM
Table of Contents
Release Notes
LCOS
10.80 RU6
Preface
The LANCOM family of operating systems—LCOS, LCOS SX, LCOS LX, and LCOS
FX—forms the trusted basis for the entire LANCOM range of products. Within the
scope of the hardware specified by the products, the latest firmware version
is available for all LANCOM products and is offered by LANCOM Systems for
download free of charge.
This document describes the innovations within LCOS software release 10.80
RU6, as well as the improvements since the previous version.
Before upgrading the firmware, please pay close attention to chapter 7
“General advice” of this document.
Latest support notes and known issues regarding the current LCOS version can
be found in the support area of our website www.lancom-systems.com/service-
support/instant-help/common-support-tips
The release tag in the software name
Release Candidate (RC)
A Release Candidate has been extensively tested by LANCOM and includes new
LCOS featurses. It is suitable for testing and is not recommended for use in
produc- tive environments.
Release Version (REL)
The release version has been extensively and successfully tested in practice.
It contains new features and improvements over previous LANCOM operating
system versions and is therefore recommended for use in productive
environments.
Release Update (RU)
A release update is a further development of an initial release version in
productive environments and contains minor improvements, security fixes, bug
fixes and smaller features.
Security Update (SU)
Contains important security fixes for the respective LANCOM operating system
version and ensures that your security level remains very high on an ongoing
basis in your productive environment.
Device-specific compatibility to LCOS 10.80
LANCOM products regularly receive major firmware releases throughout their
lifetime which provide new features and bugfixes.
LCOS release updates including bugfixes and general improvements are available
on a regular basis for devices which do not support the latest LCOS version.
You can find an overview of the latest supported LCOS version for your device
under www.lancom-systems.com/products/firmware/lifecycle-management/product-
tables
LANCOM devices without support as of LCOS 10.80
→ LANCOM LN-1700
→ LANCOM LN-1702
→ LANCOM LN-830acn
→ LANCOM L-822acn
→ WLC-4006+
Advices regarding LCOS 10.80
Changing the attribute for e-mail addresses when using certificates As of LCOS
10.80, the ‘E’ attribute for email addresses is no longer supported when using
certificates (e.g. for IKEv2). Instead, the ‘emailAddress’ attribute must be
used.
This change must be made before updating to LCOS 10.80.
Important notes on extending the input length of the main device password
As of LCOS 10.80, the input option for the number of possible characters for
the main device password and the other administrators has been extended from
16 to 128 characters. If more than 16 characters are used in LCOS 10.80, a
downgrade to versions lower than 10.80 is no longer possible or supported. It
is no longer possible to log on to a device after the downgrade.
Release Notes – LCOS 10.80 RU6
Special attention must be paid to the WLC with managed access points in the
case of password synchronization. If the longer password is used on the WLC,
all managed access points must also be operated with LCOS 10.80. In this case,
local logon is no longer possible on APs with LCOS lower than 10.80.
The above instructions apply only in case the new option of more than 16
characters is used for the password.
Information on default settings
Devices delivered with LCOS 10.00 or higher automatically connect to the
LANCOM Management Cloud (LMC). This functionality provides zero-touch
installation for new devices. In case you do not want to use the LMC, this
feature can be disabled while running the default setup wizard for the initial
configuration, or at any time from within LANconfig under Management > LMC.
You can manually re-enable the usage of the LMC whenever you want.
Omission of VPN rules in the IPv4 firewall
As of LCOS 10.70, VPN rules for generating network relationships (SAs) are no
longer supported in the IPv4 firewall and are replaced by the ‘Network rules’
configuration option in the VPN menu.
This mainly concerns scenarios with IKEv1 connections.
For more details see:
https://support.lancom-
systems.com/knowledge/pages/viewpage.action?pageId=85885727
Feature overview LCOS 10.80
5.1 Feature highlights 10.80
Let’s Encrypt for WEBconfig and the LANCOM Public Spot
Let’s Encrypt is a certificate authority that offers free HTTPS certificates
to standardize encrypted connections. WEBconfig and also the LANCOM Public
Spot now support Let’s Encrypt. This means that free and trusted certificates
can be created, integrated via the gateway, and automatically renewed with
just a few one-time and simple steps.
5.2 Further features 10.80
Zero-touch rollout for cellular routers
With the support of Zero-touch, the setup of LANCOM cellular routers is now
even easier and faster. Where previously manual configuration of the cellular
access point was required, it is now sufficient to insert a PIN-free SIM card
into the device. Zero-touch rollout enables an automatic connection to the
Internet and subsequently to the LANCOM Management Cloud to retrieve the
appropriate configuration of the gateway.
LANCOM vRouter available via Google Cloud
With LCOS 10.80, you can now operate the LANCOM vRouter on demand with the
cloud computing provider Google Cloud. This means that in addition toMicrosoft
Azure, VMware ESXi, Hyper-V, and AWS, you can now also use Google Cloud to
move your own infrastructure to the cloud. The LANCOM vRouter guarantees a
secure connection and handles encrypted communication between your site and
your virtualized infrastructure in the Google Cloud. Furthermore, the
virtualization of headquarters is also possible: the vRouter in the Google
Cloud simply replaces the central hardware gateway.
WEBconfig in new corporate design
If you manage your devices via the web browser, LANCOM provides you with a
graphical user interface via WEBconfig, which is directly integrated into LCOS
and from now on shines with a new coat of paint in a modern design and maximum
clarity.
You can find further features within the individual builds sections in chapter
6 “History LCOS 10.80”.
History LCOS 10.80
LCOS improvements 10.80.0665 RU6
New features
→ When delivered ex works, or after a configuration reset with LCOS 10.80.0664
PR, a new default remote site with the name ‘GPON-Default’ for telecom fiber
optic connections is available, which enables zero-touch commissioning with
the LMC and automatically establishes a Telekom PPPoE connection at the WAN /
SFP port (device-dependent). This remote site is available for all devices of
the 1800EF-x series, 180xVA series, and 19xx series.
→ A new configuration parameter has been introduced for IPv4 firewall
sessions, which can be used to limit the number of concurrent firewall
sessions. By default, the parameter is ‘0’, i.e. not limited. The parameter
must be set manually for the individual scenario.
→ Additional counters for monitoring the number of IPv4 firewall sessions have
been introduced.
Bug fixes
General
→ In scenarios with multiple WAN connections, the DNS service used the line
classified as ‘MOST_USED’ by default when DPS was active. This meant that DNS
queries were not answered if the internet connection was poor. The
‘ROUND_ROBIN’ method is now used again by default.
→ When installing a vRouter with LCOS 10.80 on Hyper-V, the installation
routine froze. As a result, the installation could not be completed.
→ Netflow occupied CPU resources even when Netflow was deactivated.
→ If Netflow had to clean up a large number of sessions, it could happen that
the job took too long. This led to an immediate restart of the router.
→ If a USB stick was connected to a router of the LANCOM 1800EF series, to the
LANCOM 1650E or to the LANCOM WLC-60, it could happen that it was not
recognized correctly. This led to an immediate restart of the device. It could
also happen that the immediate restart occurred when reading the console path
‘Status/USB/Devices’ with the USB stick inserted.
→ With the LANCOM devices ISG-5000 / ISG-8000 and WLC-2000 the meta
information for the LMC was not stored boot persistent. As a result, the
information was not displayed correctly in LMC monitoring when using Dynamic
Path Selection.
→ In individual cases, it could happen that configured BGP neighbors were
created twice. The first connection remained permanently in the ‘Established’
status. However, the router repeatedly tried to establish the second
connection, which led to a collision with the existing connection and thus to
the connection being terminated. This was acknowledged by the error message
“Connection collision resolution”.
→ If an SSH client tried to establish a connection to an access point or
router with the outdated and insecure encryption algorithm ‘arcfour128’, this
led to an immediate reboot of the device.
VPN
→ In scenarios with multiple VPN load balancers (e.g. with Dynamic Path
Selection), the VPN licenses were not counted correctly. With correct
licensing, this meant that too few VPN licenses were available in such a
scenario and therefore not all VPN tunnels could be established.
→ The parameter ‘Remote-Auth’ can only be set to EAP for IKEv2 in the console
path ‘Setup/VPN/IKEv2/Auth/Parameter/
In such a case, the error message “Missing EAP license.” is now displayed.
→ When using an IKEv2 load balancer, it could happen that the load balancer
was no longer set up if a setup and teardown overlapped.
Furthermore, sessions were not deleted from the statistics when switching to a
different interface, so that the number of sessions was displayed incorrectly.
LCOS improvements 10.80.0594 RU5
New features
→ For multi-core devices, the CPU utilization of multiple CPU cores is now
also displayed in the status menu or as SNMP OID.
→ For RADIUS scenarios, a new switch has been introduced in multiple modules
that defines whether the presence of the ‘Message Authenticator attribute’ in
RADIUS messages is enforced on the client side (i.e. the side that receives a
‘RADIUS Accept / Fail’).
→ The 802.1X authenticator in LCOS no longer accepts responses without an EAP
message.
→ For dynamic path selection / load balancer scenarios, a new parameter has
been added that places sessions on the most utilized channel.
→ In TR-069, you can configure which WAN connections should not be used by the
TR-069 client for the connection to the ACS.
→ The performance when displaying the IPv4 firewall connection list for large
tables has been improved.
→ Stability improvement in the output or display of the IPv4 router connection
list and open port list in scenarios with a large number of entries under high
load.
→ Improved performance when automatically cleaning up the IPv4 router
connection list in scenarios with a large number of entries.
→ Stability improvements and optimizations in ARP, especially in scenarios
under load.
Bug fixes
General
→ The SFP+ interfaces of a LANCOM ISG-5000 or ISG-8000 could not be
permanently set to ‘10 Gbps fiber’. An error message was displayed when
writing back.
→ When using the accounting function, it could happen that the LANCOM router
performed a sudden restart during a firmware update.
→ When using VRRP on routers of the 1800 series (except 1800EF, 1800EFW and
1800EF-5G), the VRRP address could only be addressed if a bridge group was
assigned to the Ethernet port used instead of a LAN interface.
→ In individual cases, routers with multicore CPUs could cause the scheduler
not to assign any work to the TCP job. As a result, SSH connections to the
affected router were very slow and routers managed by the LMC repeatedly lost
the connection to the LMC.
→ If a router managed by the LMC was disconnected from the Internet via the
WEBconfig tunnel in the LMC, this led to an immediate restart of the router.
→ The use of more than one plugged-in SFP module of the type ‘SFP-CO10MG’
could lead to an immediate reboot of the LANCOM router.
→ Some syslog assignments between log level and source were incorrect. For
example, the log level ‘Info’ was assigned to the source ‘Emergency’.
→ When using Mesh VPN, it could happen in individual cases that several
processes processed the same variables at the same time. This led to an
immediate restart of the router.
→ A background image uploaded for Public-Spot was cut off at a size of 1500 x
999 pixels on the displaying device because the associated variable only had a
length of 16 bits.
→ With a LANCOM ISG-5000 managed via LMC, a maximum of 128 Public Spot users
could be created.
VPN
→ The VPN data throughput was calculated incorrectly for the LANCOM ISG-5000
and ISG-8000 devices. As a result, a value that deviated from reality was
displayed on the console, in LANmonitor and the LMC.
→ If more than 1000 VPN connections were established simultaneously, the ‘VPN-
IKE’ process occupied all free CPU resources and the CPU load of the router
increased to 100%. As a result, the establishment of VPN connections stopped
and some connections were terminated again due to a DPD timeout. As a result,
a large number of VPN connections could not be established.
Wi-Fi
→ On the LANCOM 1800EF and 1800VA devices, a high value for the number of
connected 6 GHz Wi-Fi clients was displayed in the ‘Status / WLAN Management’
path, although no WLC Basic option for routers was activated on these devices.
VoIP
→ If the Voice Call Manager received an error message in the SIP that belonged
to a SIP call that no longer existed, this led to an immediate restart of the
router.
LCOS improvements 10.80.0450 SU4
Bug fixes
General
→ A security vulnerability has been fixed which caused the password of the
administrator ‘root’ to be reset – and thus deleted – after writing a complete
configuration (e. g. an *.lcf file) with another administrator with supervisor
authorization.
LCOS improvements 10.80.0448 RU3
New Features
→ New configuration option for data roaming in third-party networks for mobile
routers on the CLI. Data roaming is activated by default.
→ New configuration option for the PDP context (IPv4/IPv6) in the event of
data roaming in third-party networks for mobile routers on the CLI. IPv4 is
used by default when roaming in third-party networks.
→ The ICMP SLA monitor now automatically generates a syslog message for
measurements or threshold values in the result evaluation in the case of
‘Critical’ and ‘Warning’.
→ If a running trace consumes too much free memory, it is automatically
terminated by the system so that the device is protected from restarting due
to insufficient free memory.
→ IPsec performance improvement in the event that the device has established
the VPN connection (initiator)
→ IPsec performance improvements for 1800 / 1900 series devices
→ The syslog filter is now also supported for messages from the internal
syslog server.
Bug fixes
General
→ After a configuration rollout via the LMC, it could happen in certain
situations that the changes were transmitted again by the LMC. This meant that
the configuration generated by the LMC was incorrect and an inconsistent
configuration was created when it was rolled out again.
→ If the ‘Address Family Transition Router’ (AFTR) of the provider was changed
for a Dual Stack Lite connection, it could happen that the new DNS address of
the AFTR could not be reached because the DNS address of the previous AFTR was
still being used due to a problem with the DNS cache.
→ If a service in the LANCOM router (e.g. DynDNS) was still using TLS 1.0 or
1.1, this led to an immediate restart.
→ Due to a too large DMA buffer, the image of a LANCOM vRouter could not be
installed under Microsoft Azure.
→ LANCOM routers of the 1700 series with permanently configured Internet
access data, which were subsequently connected to the ACS server of Deutsche
Telekom, sent an incorrect provisioning code.
→ Because the required value was not stored in the transmission mode for SFP
connections, the value ‘Auto’ was automatically stored. As a result, a
configuration rollout via the LMC was prevented by the lack of the parameter.
→ If the SMTP server of an email provider only allowed the encryption
algorithm ‘secp384r1’ during TLS negotiation, the TLS handshake could not be
completed. As a result, the email transmission failed.
→ If an add-in script was rolled out via LMC, which incorrectly set the line
index to 0 (only numbers from 1 may be used as an index), this led to an
immediate restart of the device.
When using Dynamic Path Selection in conjunction with a load balancer at the
head office, if a VPN connection failed, data traffic initiated from the
central site for an existing session continued to be routed via the terminated
connection. This meant that the packets could not be answered by the branch
office and it was therefore not possible to switch to the other VPN connection
(passive switchover).
In such a scenario, the head office now routes all existing sessions via the
other VPN connection (active switchover).
→ The load score for Dynamic Path Selection has been set to the maximum value
of 250 instead of 0 for connections that have not yet been established.
→ If an IPv6 interface was activated for an EoGRE tunnel, it could happen that
the EoGRE tunnel was constantly activated and deactivated again (flapping).
→ Due to the introduction of the ‘Japanese Unicode Conversion’ in LCOS 10.80,
more special characters had to be taken into account, which significantly
increased the load on the DNS service. In large scenarios, this could lead to
the DNS service permanently utilizing 100% of the CPU, resulting in
restrictions during operation.
VPN
→ It could happen that VPN connections were not established automatically by
the keepalive mechanism. Instead, the establishment was only triggered by a
data transfer.
→ When using tunnel groups in the VPN, it could happen that the remaining
connections of the group were also disconnected when a VPN connection was
terminated.
→ After disconnecting several VPN connections within a tunnel group, it could
happen that the newly established connections were not established to the same
gateway as the remaining connections. This meant that communication via the
load balancer was not possible.
Wi-Fi
→ In a Public Spot scenario, when using self-created welcome pages and using
the authentication method “Login after declaration of consent”, an error
message could appear during the first login to the system, claiming a missing
e-mail address.
VoIP
→ In the WEBconfig configuration dialog for adding a new DECT handset, the
field for assigning the handset ID was missing.
LCOS improvements 10.80.0345 RU2
New features
→ The ping command can be executed via WEBconfig under ‘Extras / Execute
ping’.
→ The Internet setup wizard for mobile radio has been expanded to include
providers from France, the USA and the Netherlands.
→ The broadcast bit for the DHCP client can now be switched. To do this, there
is the parameter ‘B-DHCP’ in the selection for layer 3 in the WAN layer table
on the console or in the LCOS menu tree.
→ Adjustments to the QinQ VLAN on the WAN: The scenario is now supported that
both Ethernet types (e.g. 0x8100) are identical, but only one tag is included,
or is ‘0’.
→ Additional status parameters for mobile radio are supported in the TR-069
data model TR-181.
→ Support for displaying the WWAN firmware version in the LMC.
→ With the LANCOM ISG-8000, parameters such as backlighting for the device
display can be configured on the console.
→ The interface or WAN connection used for SIP registration is now also
displayed in the VCM status table ‘Line’.
Bug fixes
General
→ With a high volume of IPSec data, enqueue errors could occur if packets were
to be added to a queue that had already been released. In individual cases,
this could lead to an immediate restart of the router in connection with
further encrypted data traffic (e.g. HTTPS).
→ The vRouter only supports one CPU core. However, it could happen that the
vRouter assigned jobs to several virtual CPU cores, which then led to an
immediate restart.
→ A security vulnerability in the SSH protocol has been fixed (‘Terrapin’
security vulnerability/CVE-2023-48795).
→ In a scenario with config sync, it could happen that no synchronization of
the configurations was carried out due to a failed TLS handshake.
→ With a TACACS+ login, it was not possible to use user names with more than
16 characters. User names can now contain up to 32 characters.
→ In a VRRP scenario in which ICMP line polling was used for a remote station,
it could happen that a switch back from the backup device to the master device
failed.
→ After disconnecting from the Internet, it could happen that the MAC address
of the router was used instead of the stored user-defined MAC address.
→ The ‘Layer 7 application detection’ could not resolve packets with QUIC, as
a result of which the corresponding data traffic was not listed in the
statistics.
→ When using the Safari browser under iOS / macOS, the configuration could not
be saved via WEBconfig.
→ In a scenario with DPS (Dynamic Path Selection), switching the session to a
better line (passive switchover for DPS) for UDP packets did not work on
central devices.
→ On 5G routers with an IPv6-only mobile connection, an IPv4 context is set up
in addition to the IPv6 context. The IPv4 context reports a ‘link down’ after
two minutes due to inactivity. This incorrectly led to the entire mobile
connection being terminated.
→ When using the test mode (flash no), it could happen in individual cases
that the complete device configuration was deleted after writing a
configuration.
VPN
→ The ICMP polling function used an incorrect routing tag during the polling
process, which could cause the connection setup to fail for IKEv2 connections
for which a routing tag was specified in the routing table.
→ In individual cases, the router could restart unexpectedly if a large number
of VPN operations were carried out in quick succession.
Wi-Fi
→ After an update to LCOS 10.80, PoE negotiation via LLDP no longer worked.
As a result, access points that require PoE according to 802.3at for full
functionality were only supplied with PoE according to 802.3af. This limited
the functionality of the access points.
→ When using the Public Spot mode ‘Login data is sent via SMS’, no country
code could be selected on the landing page.
VoIP
→ If the Voice Call Manager routed an incoming call to an internal user with
multiple registrations (SIP user with multiple SIP registrations or ISDN user
with activated parallel call), who forwarded the call to another subscriber,
the Voice Call Manager did not send a source phone number. As a result, the
phone number of the original caller was not sent to the other subscriber.
→ The Voice Call Manager does not support RTP extensions. If the Voice Call
Manager received an incoming call with RTP extensions, it also sent the RTP
extensions in the ‘SDP Answer’. This meant that the called party could not
hear the caller.
The Voice Call Manager no longer sends RTP extensions in the ‘SDP Answer’.
→ If the encryption function was activated in the settings of a SIP line, an
IPv6 registration with the registrar forced in the ‘SIP domain/realm’ field
with the suffix ‘?6’ did not work.
→ During a call via the Voice Call Manager, it could happen that reserved
memory was overwritten. This led to an immediate restart of the router.
→ If the Voice Call Manager in INVITE received two alternative media streams
(m=audio) with different ports from the SIP provider, the router only
responded with one media stream in the “200 OK” to the provider. This resulted
in the call being terminated by the SIP provider.
→ In a scenario with a connected SIP PBX, the Voice Call Manager incorrectly
sent a CANCEL to the SIP PBX after forwarding an incoming call to an external
subscriber via SIP302.
LCOS improvements 10.80.0233 RU1
New features
→ Support of Zero Touch commissioning for the LANCOM 1800 Blackline series and
LANCOM 1900 series on the WAN Ethernet port. For this purpose, the device must
be delivered with LCOS 10.80 RU1 or higher or a reset must be performed after
the update to LCOS 10.80 RU1.
→ The operating mode for the rollout agent is now ‘Off’ by default.
→ If a connection is terminated, extended information is now displayed in the
syslog for WWAN.
→ When displaying tables with many entries in WEBconfig, the entries are now
displayed on several pages by pagination.
Bug fixes
General
→ Using WEBconfig, a maximum value of 2147483647 could be entered in the
‘Remote AS’ field in the ‘Configuration / Routing protocols / BGP / Neighbors’
menu, although higher values were also possible via the console and LANconfig.
→ If several ARF networks were configured on a router with the same IP address
(separated by VLAN), a configuration change in the ARF networks triggered
‘gratuitous ARP flooding’ in each network. In scenarios with a large number of
identical ARF networks, this could lead to severe packet loss and also to an
immediate restart of the router.
After changing the configuration of the ARF networks, only one ‘gratuitous
ARP’ is now sent for each network.
→ If there were a large number of routing entries on a router (e.g. learned
via BGP) and all interfaces were read out by a monitoring tool via SNMP (SNMP
path 1.3.6.1.2.1.4.24.4, RFC 2096), the router’s CPU was fully utilized. The
router was then restarted immediately.
→ The 4G LED of the LANCOM 1800VA-4G was permanently lit blue, even if the
cellular module was not active.
→ A faulty BGP base attribute could cause the BGP connection to be terminated
(VU#347067).
→ If the remote destination (such as an access point) confirmed several
packets with an ACK in an L2TP tunnel to a router, this meant that the
sessions on the router were not deleted when the connection was terminated. As
a result, the L2TP connections could not be re-established.
→ OpenSSL has been updated to version 3.0.12.
Wi-Fi
→ For access points with a fixed frequency band on a WiFi6 WLAN module,
different frequency bands could be selected via WEBconfig.
→ In LCOS 10.80 Rel, the Public Spot templates no longer worked due to changes
to the paths for the jquery libraries.
There are now new variables for the jquery libraries and new Public Spot
templates. If you want to use your own templates with LCOS from version 10.80
RU1, you must use the new versions.
VPN
→ If the router received an ‘Informational request’ with a DELETE(CHILD_SA)
message followed by a DELETE(IKE_SA) message when an IKEv2 connection was
established, this led to an immediate restart of the router.
→ IDS blocked the keepalive packets of a GRE tunnel because the firewall
expected at least 2 bytes of user data in GRE packets after the protocol
field. As a result, the GRE tunnel was repeatedly taken down.
→ No certificate containers (PKCS12) could be uploaded to one of the VPN
certificate slots via WEBconfig. The process was always acknowledged with the
messages “Upload failed” and “Incorrect password or invalid file type”.
VoIP
→ If the Voice Call Manager received a duplicate ‘Connection Information’ with
different IP addresses during an incoming call in a dialog (“180 Ringing”,
“183 Session Progress” or “200 OK”), it could happen that the Voice Call
Manager sent the answer to the wrong IP address. This led to a one-sided voice
transmission.
LCOS improvements 10.80.0155 Rel
New features
→ Support of the re-init function for 5G modules
→ Support for N:N NAT for multicast data packets (not for SSM)
→ Support for WWAN status values RSRP, RSRQ and SINR and display in WEBconfig
dashboard
→ Improvement of the hard disk performance of the LANCOM vRouter
Bug fixes
General
→ If an incorrect APN was entered on a mobile router with a 5G module, this
led to an immediate reboot of the router after a few minutes.
→ If an SFP-GPON-1 module with activated ‘Dying Gasp’ function was plugged
into the LANCOM router, no automatic configuration change with subsequent
restart of the module took place. As a result, the PON management connection
did not start and remained in the ‘Opening management connection’ state.
→ After an undefined time (it could be several weeks), the WWAN module
switched itself off and was then in the ‘Deactivated’ state. As a result, an
Internet connection was disconnected.
→ With mobile routers, it could happen that an error was displayed in the
connection information of the mobile connection (Status/Modem-Mobile/ Connect-
Info), although the connection was established.
→ On a serial device connection, an active session was not disconnected when
using the ‘passwd -n’ command in a script.
→ The value specification for memory usage was incorrectly output on the
display page for LANCOM devices with LCOS.
→ When forwarding to an external RADIUS server, the specified IP address was
entered in reverse order in the configuration at the LANCOM 1800EFW.
→ As soon as a new configuration was imported into a LANCOM 1900EF-5G via
script, the WWAN modem remained in the ‘Device Removal/Deactivated’ state. The
WWAN modem could only be set to active mode by restarting the device.
→ On some LANCOM mobile routers, the built-in WWAN module did not provide a
network identifier in text form. As a result, the ‘Network’ field remained
empty after a query (e.g. via CLI with ‘ls /Status/Modem-Mobile’).
VPN
→ If a LANCOM router received an ‘INVALID_SPI notification’ from another
router, the LANCOM router deleted the child SA of the associated IKEv2
connection.
It could happen that the memory of the deleted child SA was occupied twice.
This led to an immediate reboot of the router.
→ In individual cases, it could happen that the ‘Security Associations’ of a
VPN connection were not terminated when switching to a backup connection. As a
result, the VPN connection could no longer be established. In such a case, the
message “VPN: local reconnect lock active” was displayed in a VPN status
trace.
Wi-Fi
→ UDP traffic could also be transmitted without logging into the Public Spot,
allowing some applications to communicate with their servers on the Internet.
→ A managed access point did not use the VLAN ID entered in the SSID in the
WLAN controller, but always the VLAN ID available in its local configuration
in the group key index. This meant that broadcasts and multicasts could not be
decrypted and thus could not be transmitted.
→ The source VLAN check (Setup/Public Spot modules/Check origin VLAN) in the
Public Spot only worked for VLANs that were assigned via RADIUS. If the VLAN
was assigned via another method (e.g., via circuit ID), the WLAN client was
not logged out of the Public Spot and could communicate in other existing
Public Spot SSIDs.
→ If a framing error occurred on the serial bus to the ePaper radio module,
the connection to the ePaper displays was lost and the displays could no
longer be updated. In such a case, the error messages “AccessPoint – An error
occurred, need to restart WePaper Access-Point” and “SerialInterface – Error
in communication with RF-Module!” were output in the syslog of the access
points.
The connection between the ePaper radio module and the ePaper displays is now
re-established even without a restart of the access point.
VoIP
→ In a SIP trunk scenario with gateway line to a SIP PBX, when the router
received a ‘RE-INVITE’ from the SIP provider on the SIP trunk with ‘refresher’
in the ‘Session-Expires’ header (in this case ‘refresher=uas’), the Voice Call
Manager changed the ‘refresher’ in the “200 OK” to the SIP provider (to
‘refresher=uac’), which is not allowed. This caused the call to be
disconnected by the SIP provider.
→ If analog or ISDN devices were connected to the router, the Voice Call
Manager always sent the codecs PCMA (G.711-a) and PCMU (G.711-u) in the SDP
offer as soon as one of the two codecs was contained in the SDP offer.
Now all codecs except PCMA and PCMU are deleted from the SDP-Offer and the
first codec is taken over into the SDP-Answer. If PCMU is used, the Voice Call
Manager transcodes this to PCMA, since ISDN and analog devices only support
PCMA. If there is no SDP-Offer in the INVITE, the Voice Call Manager answers
with PCMA and PCMU in the SDP-Answer.
LCOS improvements 10.80.0124 RC2
New features
→ The DHCPv4 client supports the MTU option.
Bug fixes
General
→ On a LANCOM 1793VA-4G, the SIM card remained offline when the router was
without power or a cold boot was performed via the command line.
→ Running a script with the ‘beginscript’ and ‘exit’ commands sporadically
caused existing BGP connections to be disconnected.
→ The IPv6 firewall used a non-existent content filter profile ‘CF-PARENTIAL-
CONTROL-PROFILE’ instead of ‘CF-PARENTAL-CONTROL-PROFILE’.
→ Deprecated SSL/TLS default settings were used in the ‘Setup/Mail’ path. The
following default values are now used:
- at least TLS 1.2
- no MD5/SHA1
- no 3DES
- exclusively Key Agreement with PFS
→ A newly added ‘Virtual link’ was not automatically detected with OSPF
enabled. OSPF had to be globally deactivated and reactivated for this.
→ The TR-069 service sent its requests with the IP address instead of the DNS
name of the ACS server. This caused the TLS connection to be terminated on a
strictly configured ACS server with SNI because the URI and the name in the
certificate did not match.
VoIP
→ When DNS resolving SRV records via NAPTR, the output of the console command
‘show vcm dns’ always displayed one SRV record more than was actually
resolved.
LCOS improvements 10.80.0075 RC1
New features
→ Support for Let’s Encrypt certificates (ACME client) for WEBconfig and the
LANCOM Public Spot
→ Zero-touch rollout for mobile routers together with the LMC
→ WEBconfig in new corporate design
→ Support for Google Cloud (GCP) for the LANCOM vRouter.
→ Support for High Availability Clustering Option L for the LANCOM 1900
series.
→ Routers can record and store traces and Wireshark captures directly on a USB
stick.
→ Entries in the action table can be tested or executed by a CLI command.
→ Support for the ‘Automatic APN’ feature on cellular routers.
→ Access to RPCap and LCOScap via WAN can be configured.
→ The GPON status can be displayed on the WEBconfig dashboard.
→ The GPON password can now also be entered in HEX format (20 characters).
→ Accounting in the router has been reworked and can now also be used to
display the throughput of current sessions of stations in the analysis case.
→ Support for configurable responses to incoming SMS messages on cellular
routers, e.g. sending reply SMS messages for re-billing when data volume is
used up.
→ Support for cold standby on cellular routers
→ The input option for the main device password and additional administrators
has been extended to a maximum of 128 characters. When using the new password
length, a downgrade to older LCOS versions is no longer possible.
→ The status table ‘Protocol-Table’ under ‘/ Status / IP-Router’ is omitted.
→ The ‘LTE-Delayed-Attach’ switch on cellular routers is omitted.
→ The ‘Stack Errors’ status counter of the IP router is omitted.
→ The ‘Establish-Table’ status table is omitted.
→ The ‘Tx-normal’, ‘Tx-urgent’ and ‘Tx-reliable’ columns in the ‘/ Status /
WAN / Packet Transport’ table are omitted.
→ Support for SSL 3.0 and ciphers with 56 bits or less has been removed.
→ Support for 3G (USB) WWAN modems has been removed completely.
→ WEBconfig certificates generated by LCOS now only have a maximum validity of
365 days.
→ 464XLAT and DS-Lite can be used as backup.
→ Support of the operating switch for SMS
→ Disabling syslog now also disables the regular writing of the syslog backup
to the internal flash memory.
→ DHCP and DHCPv6 servers are displayed in WEBconfig under ‘Services’.
→ The ‘(VLAN) Priority Bit’ can be set for WAN connections.
→ Additional DHCP options can be configured on the DHCP client.
→ Additional DHCPv6 options can be configured on the DHCPv6 client.
→ Support for interim accounting in Netflow
→ Netflow now uses 64 bit counters internally.
→ Support for dual stack (IPv4 / IPv6) in Config Mode with IKEv2 against the
LANCOM Advanced VPN Client.
Bug fixes / improvements
General
→ For routers with multi-core CPU (e.g. LANCOM 1800 series), only the
utilization for CPU core 0 was displayed in the console path ‘Status /
Hardware info’. Now the average value of all CPU cores is displayed.
→ After activating a VPN-25 option on a router (no reboot required), the
device certificate could not be downloaded in WEBconfig via the ‘Download
current CA certificate’ option when the CA was activated. The process was
acknowledged with the error message ‘Not found’. The download of the
certificate was only possible after a restart.
VoIP
→ If the Voice Call Manager received both the P-Asserted-Identity (PAI) and
the P-Preferred-Identity (PPI) in an INVITE from a SIP PBX, the Voice Call
Manager then used the phone number in the PAI. If this phone number was not
known to the SIP provider in a scenario with CompanyFlex connection (e.g. due
to a missing digit), the call was disconnected and acknowledged with the error
message “403 Forbidden”.
There is now an additional parameter ‘Prefer-Identity-Field’ in the path
‘Setup / Voice-Call-Manager / Users / SIP-Users / Users’. This can be used to
select whether the PAI (Prefer-PAI) or the PPI (Prefer-PPI) should be
preferred (default setting is PAI as before).
General advice
Disclaimer
LANCOM Systems GmbH does not take any guarantee and liability for software not
developed, manufactured or distributed by LANCOM Systems GmbH, especially not
for shareware and other extraneous software.
Backing up the current configuration
Before upgrading your LANCOM devices to a new LCOS version it is essential to
backup the configuration data!
Due to extensive features it is not possible to downgrade to a previous
firmware without using the backup configuration.
If you want to upgrade devices which are only accessible via router
connections or Wi-Fi bridges, please keep in mind to upgrade the remote device
first and the local device afterwards. Please see the LCOS reference manual
for instructions on how to upgrade the firmware.
We strongly recommend updating productive systems in client environment only
after internal tests. Despite intense internal and external quality assurance
procedures possibly not all risks can be eliminated by LANCOM Systems.
Using converter firmwares to free up memory
Due to numerous new functions within the LCOS firmware it may not be possible
in some circumstances for older devices to keep two fully-featured firmware
versions at the same time in the device. To gain more free memory, a smaller
firmware with less functionality has to be uploaded to the device first. As a
result, significantly more memory will be available for a second firmware.
This installation has to be done only once by using a “converter firmware“.
After having installed the converter firmware, the firmsafe function of the
LANCOM device is only available on a limited scale. The update to a new
firmware is furthermore possible without any problems.
However, after a failed update the LANCOM device works with the converter
firmware which only allows local device access. Any advanced functionality,
particularly the remote administration, is not available as long as the
converter firmware is active.
LANCOM, LANCOM Systems, LCOS, LANcommunity and Hyper Integration are
registered trademarks. All other names or descriptions used may be trademarks
or registered trademarks of their owners. This document contains statements
relating to future products and their attributes. LANCOM Systems reserves the
right to change these without notice. No liability for technical errors and/or
omissions. 07/24
LANCOM Systems GmbH
A Rohde & Schwarz Company
Adenauerstr. 20/B2
52146 Wuerselen | Germany
info@lancom.de
lancom-systems.com
LANCOM, LANCOM Systems, LCOS, LANcommunity and Hyper Integration are registered trademarks. All other names or descriptions used may be trademarks or registered trademarks of their owners. This document contains statements relating to future products and their attributes. LANCOM Systems reserves the right to change these without notice. No liability for technical errors and / or omissions. 07/2024
References
- Business network solutions "engineered in Germany": LANCOM Systems GmbH
- Product tables LCOS Lifecycle Management: LANCOM Systems GmbH
- Common Support Tips: LANCOM Systems GmbH
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