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: Mon, 16 Jul 2012 21:39:46 +0200
On Monday 16 July 2012 18:26:08 Rajendra Chayapathi wrote:
On the HSRP/ND part , this all falls in the First Hop redundancy areana and can be achieved via any of the following and each has its merits and cons.. 1) Using ND -- need to tune the "IPv6 nd reachable time" to achieve the faster failover 2) Using any of the First hop redundancy protocol ( HSRP, VRRP , GLBP) 3) Default route selection.
In all honesty, I think using ND as the failover method is a generally bad idea - you have no way of ensuring all endpoints take note of or honour the router preference flag. Additionally, having a 1 second validity lifetime is going to create a lot of ICMPv6 spam across the segment - big deal? perhaps not. But when contrasted with the fact that it can be wholly avoided using one of the aforementioned redundancy protocols, why would you do it? Additionally, as an alternative to RAs, you can simply point default at the all-routers anycast address. Regards, Oliver
Current thread:
- Re: using "reserved" IPv6 space, (continued)
- Re: using "reserved" IPv6 space -Hammer- (Jul 16)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space -Hammer- (Jul 16)
- Re: using "reserved" IPv6 space valdis . kletnieks (Jul 16)
- Re: using "reserved" IPv6 space -Hammer- (Jul 16)
- Re: using "reserved" IPv6 space Ray Soucy (Jul 16)
- Re: using "reserved" IPv6 space Seth Mos (Jul 16)
- Re: using "reserved" IPv6 space Owen DeLong (Jul 16)
- Re: using "reserved" IPv6 space Seth Mos (Jul 17)
- Re: using "reserved" IPv6 space Rajendra Chayapathi (rchayapa) (Jul 16)
- Re: using "reserved" IPv6 space Oliver (Jul 16)
- Re: using "reserved" IPv6 space Rajendra Chayapathi (rchayapa) (Jul 16)
- Re: using "reserved" IPv6 space Matt Addison (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 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)