On 2013-04-11 09:29, Martin.Gysi@swisscom.com wrote:

Dear all

Please note that Swisscom has activated a new 6rd Border Relay (for IPv6…) that has a new IP address. Please adapt your Linux/Cisco/m0n0wall etc. setups, as the old BR will be turned off in a couple of weeks.

New IP: 193.5.29.1 (6rd.swisscom.com)

You might want to Netflow for the old IP address and contact the people directly as I guess folks who are using 6rd in your network might have just enabled it once and then forgotten about it and not read mailing lists...

Greets, Jeroen