Hi Harald, First there's a problem patching the gre/pptp helper if you've patched the kernel with h323 and/or talk patches. the problem is in struct ip_conntrack_expect
and the other problem is in pptp-conntrack-nat.patch.makefile-2 it contains: # NAT helpers obj-$(CONFIG_IP_NF_NAT_IRC) += ip_nat_pptp.o s/IRC/PPTP/ /Martin Never argue with an idiot. They drag you down to their level, then beat you with experience.