Iptables isn't something you "install", it's part of the kernel. You have to have it enabled, but by default, it has no rules defined:
$ sudo /sbin/iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination So, on a clean installation, you have no rules blocking GRE. You have somehow picked up a rule blocking GRE, presumably from Firestarter. Do you see a different output of the above command on a clean installation? -- [feisty] Firestarter doesn't allow traffic over PPTP tunnel https://bugs.launchpad.net/bugs/110709 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
