nanog mailing list archives
Re: using "reserved" IPv6 space
From: Cameron Byrne <cb.list6 () gmail com>
Date: Sun, 15 Jul 2012 07:02:22 -0700
On Jul 15, 2012 9:30 AM, "Scott Morris" <swm () emanon com> wrote:
On 7/15/12 5:38 AM, Grzegorz Janoszka wrote:On 2012-07-15 00:45, Tony Hain wrote:There is no difference in the local filtering function, but *IF* all
transit
providers put FC00::/7 in bogon space and filter it at every border,
there
is a clear benefit when someone fat-fingers the config script and
announces
what should be a locally filtered prefix (don't we routinely see
unintended
announcements in the global BGP table). I realize that is a big IF,
but
There was also in the past fec0::/10. For BGP updates you should be safe to filter out FC00::/6.Unless I've missed something, RFC4193 lays out FC00::/7, not the /6. So while FE00::/7 may yet be unallocated, I don't think I'd set filters in that fashion. Reasonably, wouldn't it be more likely to permit BGP advertisements within the 2000::/3 range as that's the "active" space currently? Scott
Yep. That's what we do, permit 2000::/3, with a deny statement for the documentation range and small prefixes. CB
Current thread:
- Re: using "reserved" IPv6 space, (continued)
- Re: using "reserved" IPv6 space Saku Ytti (Jul 17)
- Re: using "reserved" IPv6 space -Hammer- (Jul 17)
- Re: using "reserved" IPv6 space Doug Barton (Jul 17)
- Re: using "reserved" IPv6 space Ray Soucy (Jul 17)
- Re: using "reserved" IPv6 space valdis . kletnieks (Jul 14)
- Re: using "reserved" IPv6 space Randy Bush (Jul 14)
- RE: using "reserved" IPv6 space Tony Hain (Jul 14)
- Re: using "reserved" IPv6 space Randy Bush (Jul 14)
- Re: using "reserved" IPv6 space Grzegorz Janoszka (Jul 15)
- Re: using "reserved" IPv6 space Scott Morris (Jul 15)
- Re: using "reserved" IPv6 space Cameron Byrne (Jul 15)
- Re: using "reserved" IPv6 space Grzegorz Janoszka (Jul 15)
- Re: using "reserved" IPv6 space Mike Jones (Jul 15)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 15)
- Re: using "reserved" IPv6 space Scott Morris (Jul 15)
- Re: using "reserved" IPv6 space Jimmy Hess (Jul 14)
- Re: using "reserved" IPv6 space valdis . kletnieks (Jul 15)
- Re: using "reserved" IPv6 space Adrian Bool (Jul 13)
- Re: using "reserved" IPv6 space -Hammer- (Jul 13)
- Re: using "reserved" IPv6 space TJ (Jul 13)