The output of my iptables command is . Bad argument `MASQUERADE' I can't imagine why. I fulfilled all the requirements. MASQUERADE is a real argument but it's just not being recognized. There is no further information so I have nothing to work with. I also know very little about iptable forwarding rules. I tried but I spent 2 hours trying to

Linux Network Administrator's Guide, 2nd Edition: Chapter iptables: how to delete postrouting rule? - Stack Overflow I would like to delete POSTROUTING rule below, [root@hostname ~]# service iptables status Table: nat Chain PREROUTING (policy ACCEPT) num target prot opt source destination Chain POSTROUTING (policy ACCEPT) num target prot opt source destination 1 MASQUERADE all -- Chain OUTPUT (policy ACCEPT) num target prot opt source destination 7.4. FORWARD and NAT Rules Red Hat Enterprise Linux 4

Linux 2.4 NAT HOWTO: Saying How To Mangle The Packets

iptables -A OUTPUT -m bpf --bytecode '4,48 0 0 9,21 0 1 6,6 0 0 1,6 0 0 0' -j ACCEPT Or instead, you can invoke the nfbpf_compile utility. iptables -A OUTPUT -m bpf --bytecode "`nfbpf_compile RAW 'ip proto 6'`" -j ACCEPT Or use tcpdump -ddd. In that case, generate BPF targeting a device with the same data link type as the xtables match.

Jul 22, 2020

iptables: Small manual and tutorial with some examples and tips Written by Guillermo Garron Date: 2012-04-18 14:06:00 00:00. This is a small manual of iptables, I'll show some basic commands, you may need to know to keep your computer secure.