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Author Topic: Is HE blocking ICMP replies within its own network?  (Read 10191 times)

jimb

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Re: Is HE blocking ICMP replies within its own network?
« Reply #15 on: January 30, 2010, 06:15:11 PM »

Hrm.  The one I'm using for gentoo supports both v4 and v6 (via the -4 and -6 flags), and supports tracing via ICMP or even TCP SYN.

It uses this one apparently:  http://traceroute.sourceforge.net/

There's also the nanog version which supports other stuff: http://packages.debian.org/traceroute-nanog (but not ipv6, but then the sourceforge version supports almost all the options as this now, so prob not worth bothering).
« Last Edit: January 30, 2010, 06:22:29 PM by jimb »
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darkorb

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Re: Is HE blocking ICMP replies within its own network?
« Reply #16 on: March 03, 2010, 03:59:07 AM »

I had this issue a while back as well, I can't remember exactly what I did to fix it but I do know it was to do with the IPv6 tunnels MTU. I think I had to lower it...

Amusingly, traceroutes don't work at all for me these days (after a router reinstall).
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timbaldwin

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Re: Is HE blocking ICMP replies within its own network?
« Reply #17 on: April 07, 2010, 09:49:44 AM »

On Linux the default TTL of a 6in4 tunnel is the IPv6 hoplimit. The first IPv6 routers aren't responding because the packets are being dropped by the preceding IPv4 routers.
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curriegrad2004

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Re: Is HE blocking ICMP replies within its own network?
« Reply #18 on: April 07, 2010, 10:22:58 AM »

ICMPv6 is working here for me. I just think it's a user to user thing.
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