Date: Thu, 12 Sep 2002 14:53:36 +0200 From: Juan Francisco Rodriguez Hervella <jrh@it.uc3m.es> To: snap-users@kame.net Cc: Lista <freebsd-net@freebsd.org>, Octavio.Medina@enst-bretagne.fr, Jean-Luc.Richier@imag.fr Subject: Re: (KAME-snap 6886) Re: Reencapsulate IPv6-over-IPv6 "over" IPv4 doesn't work for me, but it should, right ? Message-ID: <3D808E50.E14E7FC2@it.uc3m.es> References: <200209121137.g8CBbO6o083811@givry.rennes.enst-bretagne.fr>
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Francis Dupont wrote: > > In your previous mail you wrote: > > gif1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1280 > tunnel inet6 2001:720:1500:30::2 --> 3ffe:3326:3:920::1 > inet6 fe80::290:27ff:fe86:93d%gif1 prefixlen 64 scopeid 0xe > inet6 3ffe:3328:6::f544 prefixlen 126 > inet6 2001:720:1500:30::2 prefixlen 128 > > => you have the same address for the tunnel encapsulation and > the tunnel itself. This will give infinite recursive encapsulation > which is detected (in this easy case only) and gives an EIO error > with a log notice like "gif_output: recursively called too many times...". > I've moved "2001:720:1500:30::2 prefixlen 64" to interface fxp0 and I've removed it from "gif1"... but still I've got the same problem... > I don't know if this is a problem of FreeBSD-4.5" or if it's > caused by the patches. > > => try to set MAX_GIF_NEST (kernel option) to a small value > (default seems to be 1 which is too small for you) and > please cleanup your config (no recursive use of addresses, > /64 prefixes on link, etc). > I haven't found such option. Are you sure FreeBSD-4.5 has it ? PS: In "gif1", I don't see any problem with a prefix of /126... Thanks again. -- JFRH. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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