If you have ever wondered how to find out an AS number of an existing EIGRP process, this is the article answering it. It is simple to get the information if you have access to the router - but what to do if you do not have access and want to join the EIGRP process with a new router.

  • First you n...

I was a fan of WCCP for setting up transparent proxy within a network - it always seemed the easiest way but all together it only seemed like that. A lot of problems came up in the past few month on customer sides and within my installation so I decided to give Proxy Auto-Configuration a try.

Bigg...

Configuring Ciscos CallManager 4.0 and above to use NTP is not as simple as it should be. First at all, CCM 4.0 is using Windows 2000 as a base system and NTP nor SNTP is enabled there per default. Especially Win2000 is using SNTP, therefore CCM 4.0 is installing a separate NTP service which has to...

After downloading the newest version of Ciscos Configuration Manager and all the updated packages for the UC520 I started the upgrade process for the Unified Communications 520 for Small Business. I wasn't surprised when the first error messages came up, because those things never work that smoo...

%Error opening nvram:/startup-config (Unknown error 0)

One of these good morning messages you do not like on a Cisco Router, especially if it is followed by a more cryptic message like NV: Invalid Pointer values ...

The solution to fix that problem was a corrupted NVRAM which can be fixed by ex...