Comcast enables 6to4 relays

Jeroen Massar jeroen at unfix.org
Tue Aug 31 01:46:52 CDT 2010


On 2010-08-31 08:22, Mitchell Warden wrote:
[..]
> Is there a reason not to advertise more specific prefixes from 2002::/16 to ensure that traffic for your v4 routes comes back to your own 6to4 router?
> 
> If for example all my users have v4 addresses in 192.0.2.0/24, I could advertise 2002:C002:0000::/40 instead of or in addition to the full 2002::/16.

The RFC forbids that with a good reason, as then we'll end up importing
the IPv4 BGP table into IPv6... not something we want to see (unless one
loves to import 300k routes in there, I guess people will really start
whining about that though ;).

Greets,
 Jeroen




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