Messages in this thread Patch in this message | | | From | Richard Bouska <> | Date | Thu, 22 Jul 1999 22:54:42 +0200 (CEST) | Subject | RE: ping -R causes kernel panic on a forwarding machine ( 2.2.5 a nd 2 .2.10) |
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diff -ur ../vger-990630/linux/net/ipv4/route.c linux/net/ipv4/route.c --- ../vger-990630/linux/net/ipv4/route.c Wed Jun 30 22:22:32 1999 +++ linux/net/ipv4/route.c Tue Jul 13 17:00:52 1999 @@ -957,7 +957,7 @@ if (rt->key.iif == 0) src = rt->rt_src; - else if (fib_lookup(&rt->key, &res) == 0) + else if (fib_lookup(&rt->key, &res) == 0 && res.type != RTN_NAT) src = FIB_RES_PREFSRC(res); else src = inet_select_addr(rt->u.dst.dev, rt->rt_gateway, RT_SCOPE_UNIVERSE);
Andrej Todosic writes: > > Correction : > > this happens only when going through the NAt code. > > I just tested and only time when it crashes is when one of the ends is in > NAT > ( i haven tested with both endss in NAT but thats rare to find anyways ) > > so to resume: > > kernel 2.2.10 > ip utility > ipchains > one of the networks is NAT-ed > > ping -R a NAT ed ip from a real ip ( it has to go through the fw ) > or ping -R a real ip from a NATed one > fw has to be below hop 9 on this road otherwise it doesnt work. > > Result : complete kernel panic > > > my ip nat rules are rather simple . > so i belive anyone should be able to reproduce the problem. > > > > comments ? > fixes ? > > > > > -----Original Message----- > From: Andrej Todosic [mailto:atodosic@ubisoft.qc.ca] > Sent: Thursday, July 22, 1999 10:04 AM > To: linux-kernel@vger.rutgers.edu > Subject: ping -R causes kernel panic on a forwarding machine ( 2.2.5 and > 2 .2.10) > > > > hello , > > i belive this is an old problem since this is not the first time i heard > about it. > > ping ing with ping -R from through a firewall machine make the firewall go > into kernel panic > tried to kill idle task > not syncing > > etc. etc. > > does anyone know a fix for the problem ? > > or a set of rules that will fix the problem ? > > i believe ping -R works only on about nine hops... what bothers me > is that nine hops can be a lot of subnets :( > > > Thanks for any help > > > > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/
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