nanog mailing list archives
Re: using "reserved" IPv6 space
From: Oliver <olipro () 8 c 9 b 0 7 4 0 1 0 0 2 ip6 arpa>
Date: Tue, 17 Jul 2012 18:49:16 +0200
On Monday 16 July 2012 21:11:18 you wrote:
The disadvantage to this is the high probability of packet duplication. For someone worried about ICMP spam on the subnet, I'm surprised you're not worried about what happens when 2 or more routers copy the same packet and route both copies on to the end destination. (Lather, rinse, repeat said duplication for any upstream segments using such tactics as well).
No. The all-routers anycast address is resolved and creates a single Layer 2 neighbor entry - it may change, but there's no packet duplication issue here because routing of an individual packet will only ever go to a single host at L2, There is a difference between Multicast and Anycast. Regards, Oliver
Current thread:
- Re: using "reserved" IPv6 space, (continued)
- Re: using "reserved" IPv6 space Jimmy Hess (Jul 16)
- Re: using "reserved" IPv6 space Karl Auer (Jul 16)
- Re: using "reserved" IPv6 space Jimmy Hess (Jul 16)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space Karl Auer (Jul 16)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space Karl Auer (Jul 17)
- Re: using "reserved" IPv6 space Matt Addison (Jul 17)
- Re: using "reserved" IPv6 space Doug Barton (Jul 17)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space Oliver (Jul 17)
- Re: using "reserved" IPv6 space Jimmy Hess (Jul 16)
- Re: using "reserved" IPv6 space -Hammer- (Jul 17)
- 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)