Re: Ping across auto IPV6 Tunnel - 50%

Hi Andrew

So you've verified that there is no equal cost load balancing going on?

Regards
Roy

2009/9/29 ALL From_NJ <all.from.nj_at_gmail.com>

> Hey team,
>
> Got this working tonight, auto ipv6 tunnels.
>
> Divin provided me this link:
>
> http://ardenpackeer.com/routing-protocols/tutorial-ipv6-tunnels-part-2-automatic-6to4-tunnels/
> <-- this helped me much.
>
> Conceptually it helped me to consider this a 'hack' or 'cheat'. Kind of
> neat in some ways too I guess ... by defining the IPv4 address as part of
> the IPv6 address, you are really telling the router to find the remote peer
> by it's IPv4 address. Of course ... the IPv4 routing table needs to be
> right before this will work ...
>
> Any who ... my question is related to ping. Has anyone else seen 50% ping
> timeout when using auto tunnels? I get all responses to other frame relay
> ipv6 peers or Ethernet peers etc ... . Here is the output, kind of looks
> like a pacing issue, but the fact that other pings work 100% of the time
> does not make sense.
>
> R1(config)#do ping 2001:3:3:3::3 sou 2001:1:1:1::1 re 10
>
> Sending 10, 100-byte ICMP Echos to 2001:3:3:3::3, timeout is 2 seconds:
> Packet sent with a source address of 2001:1:1:1::1
> !.!.!.!.!.
> Success rate is 50 percent (5/10), round-trip min/avg/max = 32/32/36 ms
>
> I have static routes going to the remote tunnel peer.
>
> Trace works just fine, no timeouts, single hop. I tried it with and
> without
> ipv6 cef. I also did a debug ipv6 pack det and debug ipv6 icmp ... nothing
> out of the ordinary ...
>
> Any thoughts? Seen this?
>
> --
> Andrew Lee Lissitz
> all.from.nj_at_gmail.com
>
>
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-- 
Regards
Roy
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