IPv6 aliases on FreeBSD 10

pepe plaine at gmail.com
Wed Oct 22 08:22:14 UTC 2014


Hello

I have little problem with IPv6 aliases. Not working at all. Default IPv6
address works fine. When I try to connect (or ping or traceroute or
anything) withn alias address it just timeouts. Ifconfig output for IPv6 is:

inet6 2001:14b8:1801:c001::1 prefixlen 48
inet6 2001:14b8:1801:c001::42 prefixlen 64
inet6 2001:14b8:1801:c001::2 prefixlen 64

So, ::1 works, ::2 or ::42 does not. And they're now prefix /64, but I
tried with prefix /48 for aliases too, it doesn't change anything.

When I try to traceroute alias ips from outside it stops here:


11  lah1-er23.ip6.dnaip.fi (2001:14b8::1177)  2054.594 ms !H * *


When I try to traceroute with alias ip as source only output in tcpdump is
this:

11:11:39.215209 IP6 (hlim 64, next-header ICMPv6 (58) payload length: 16)
bronx.iim.wtf > irc.nebula.fi: [icmp6 sum ok] ICMP6, echo request, seq 1

bronx.iim.wtf if my ::2 and irc.nebula.fi is of course where I tried to
traceroute.

So. Anyone have any ideas what might be wrong here?

-- 
Perttu Laine, pepe at kahvipannu.com
http://kpn.kahvipannu.fi


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