On 2013/03/13 12:27, Mark Martinec wrote: Hi Mark,
> On Wednesday March 13 2013 10:17:27 Schrodinger wrote: > > ifconfig_re0_ipv6="inet6 2001:41D0:2:E7c4::1 prefixlen 64" > > [...] > > Voodoo, indeed... I'm sure there's a /48 used somewhere but to be more > > specific, or rather obvious, my default gateway resides at the boundary > > of a /56 - 2001:41D0:2:E700::/56 > > Having multiple IPv6 subnets on the same wire is asking for trouble. > This isn't my network so I don't have any input into the matter. This is the OVH configuration for their dedicated servers, at least in my product range. > For example, I believe an ICMP redirect still (in 9.1) does not create > a temporary route: > http://www.freebsd.org/cgi/query-pr.cgi?pr=152791 > which beat us hard time (random unreachability between hosts), > having to rearrange that legacy segment which happened to have > two subnets on the same wire. > > The static routes destinations must be directly reachable (on-link). > Does adding the interface route not put the default gateway on-link though ? > Either use a single /56 for the whole LAN, adjusting the prefix > length on each interface, or provide a router within each subnet. > If I am to change my prefix length to /56 this means that anyone else in that /56 who is configured with a prefix length of 64 will be routing to me and I will be swicthing to them.... This could cause problems. > Doing otherwise (like using static ndp/arp entries) is just a hack. > Agreed, I had no intention of fixing the problem this way. C. -- +---------------------------------------------------------------+ Quidquid latine dictum sit, altum sonatur. MSN: sch...@hotmail.com ICQ: 112562229 GPG: http://www.konundrum.org/schro.asc
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