You can use a Windows tool (LANconfig), the Web interface (WEBconfig), the Command-Line Interface (CLI), or SNMP to configure your LANCOM router. In the CLI, you see the used OpenSSL version via sysinfo. Below, I used WEBconfig. Furthermore in the WEBconfig, I found (at least) three paths/views for configuration: (A) Wizard, (B) Hierarchy, and (C) Menu Tree.
10.30.0075 = 10.30 Rel (Reference Manual: General, All-IP, Content Filter, Public Spot, WLAN Management)
10.20.0455 = 10.20 RU6 (Reference Manual: General, All-IP)
10.12.0659 = 10.12 RU12 (Reference Manual: General, All-IP)
retested in May 2020 with 10.12.0787-SU15 and 10.20.0637-SU10
| Password: | has to be changed on first use |
| HTTPS: | enabled on default |
| Update: | File management → Perform a Firmware Upload, or Extras → Check for Firmware Update, or Configuration → Management → Software update (→ General) → Check & Update |
| Trust Anchors: | File management → Upload Certificate → File type: SIP - Trusted Certificate Chain Slot 1: PKCS#12 allows several trust anchors in one file; no private key required: openssl pkcs12 -export -in 76.pem -in 8395.pem -nokeys -out common.p12 |
| SIP-URI User: | A) Setup Wizard → Setup Voice-over-IP → (Lines) SIP provider and (Users) ISDN users → User defined → … or B) Configuration → Voice Call Manager → Lines → SIP lines → Add → SIP-ID, or C) LCOS Menu Tree → Setup → Voice-Call-Manager → Lines → SIP-Provider → Line → Add → User-Id |
| SIP-URI Host: | A) … SIP domain → other… B) … SIP domain C) … Domain Port: 0 (enables DNS-SRV) |
| SIP-over-TLS: | A) … finish wizard and edit via B or C B) … Signaling encryption: TLS 1.0 and Verify server cert. acc. to: SIP cert. slot 1 C) … Transport: TLSv1 and Verify-Server-Certificate: SIP-Trusted-CA-Slot-1 this is not a minimum version, therefore, you have to know the version(s) of your SIP provider (higher is better) |
| SDES-sRTP: | A) … finish wizard and edit via B or C B) Speech encryption: Prefer C) SRTP: Prefer which is RTP/SAVP, 488, RTP/AVP |
To use that new destination line, for example, you change the existing default call-route:
B) Configuration → Voice Call Manager → Call Router → Call routing → Default → Destination line
C) LCOS Menu Tree → Setup → Voice-Call-Manager → Call-Router → Call-Rounting → default → Dest-Line-1
| SDES-sRTP: | [SNMP 2.33.3.1.1.23] Configuration → Voice Call Manager → Users → SIP Users → (Security) Speech encryption: Prefer This controls SDES-sRTP for users of the internal SIP B2BUA. Default is Ignore but the remaining sRTP options do not get disabled/greyed then. |
| Signaling DiffServ: | [SNMP 2.33.2.15] Configuration → Voice Call Manager → Extended → (Quality of Service) SIP DiffServ codepoint (DSCP): CS5 Default is CS6; help text is wrong because it states CS1 as default and CS3 as recommendation. |
| IPv6: | [SNMP 2.70.10] Configuration → IPv6 → General → IPv6 enabled Default is Disabled; remaining defaults look good. |
| SHA-2 Digest: | ignores algorithm and picks last |
| DNS-NAPTR: | missing |
| Voice Call Manager (VCM): | since 10.40, everything allows TLS 1.3, except the VCM |
| Signaling DiffServ: | when using the SIP B2BUA, does not work internally for TCP (and TLS), only for UDP |
| Bugs: | |
| Responsible Disclosure: | via ticket system Agents close your case when the issue was handed over to Engineering. Re-opening the ticket does not help, because is gets closed after two months of inactivity automatically. Consequently, you have to monitor the release notes whether your issue was fixed. |
| Firmware Update: | Automatic Update: possible since LCOS 10.20, see… (even beta is possible) Update Newsletter: LANCOM LCOS Newsflash Update Newsletter for Release Candidates: LANCOM RC Newsflash |
Some models require an intermediate update and then a conversion. Please, do not give up to get the latest version and double-check the (Telekom) download page. Some models within a series are End-of-Sale and/or End-of-Life already; please double-check its lifecycle. Anything below 10.20 is not recommend because the automatic firmware update is missing then.
12 V 1.5 A, Coaxial: 5.5 mm × 2.1 mm