Hi, Rickard Eriksson [mailto:riceri@home.se] wrote >=20 > When i try to use pptp conntrack module and the proto gre=20 > module i get=20 > this in the log file, anyone know what can be wrong? >=20 >=20 > kernel: ip_conntrack_pptp.c: bad csum I can't help you with this message. You may want to enable debugging in the relevant netfilter modules (gre and pptp) by changing the #if 0 into #if 1 and recompiling, then posting this info to netfilter-devel if the problem persists. Are you actually experiencing connection problems with PPTP ? > kernel: ASSERT ip_conntrack_core.c:94 &ip_conntrack_lock readlocked > kernel: ASSERT ip_conntrack_core.c:1067 &ip_conntrack_lock=20 > not readlocked > kernel: ASSERT ip_conntrack_core.c:1076 &ip_conntrack_lock=20 > not readlocked > kernel: ASSERT: ip_nat_core.c:839 &ip_conntrack_lock not readlocked > kernel: ASSERT ip_conntrack_core.c:94 &ip_conntrack_lock readlocked > kernel: ASSERT: ip_nat_core.c:839 &ip_conntrack_lock not readlocked > kernel: ASSERT ip_conntrack_core.c:94 &ip_conntrack_lock readlocked > kernel: ASSERT: ip_nat_core.c:839 &ip_conntrack_lock not readlocked > kernel: ASSERT ip_conntrack_core.c:94 &ip_conntrack_lock readlocked > kernel: ASSERT: ip_nat_core.c:839 &ip_conntrack_lock not readlocked >=20 Apparently these are annoying, but harmless messages. See this thread on netfilter-devel: http://lists.netfilter.org/pipermail/netfilter-devel/2002-October/009517 .html Regards, Filip