iptables-save в студию
# Generated by iptables-save v1.4.4 on Wed Jan 26 11:29:13 2011
*mangle
:PREROUTING ACCEPT [12516:4128087]
:INPUT ACCEPT [12412:4121307]
:FORWARD ACCEPT [100:6540]
:OUTPUT ACCEPT [13217:4749091]
:POSTROUTING ACCEPT [13353:4761143]
-A FORWARD -o ppp0 -p tcp -m tcp --tcp-flags SYN,RST SYN -m tcpmss --mss 1400:65495 -j TCPMSS --clamp-mss-to-pmtu
COMMIT
# Completed on Wed Jan 26 11:29:13 2011
# Generated by iptables-save v1.4.4 on Wed Jan 26 11:29:13 2011
*nat
:PREROUTING ACCEPT [1145:78620]
:OUTPUT ACCEPT [419:26159]
:POSTROUTING ACCEPT [453:28361]
COMMIT
# Completed on Wed Jan 26 11:29:13 2011
# Generated by iptables-save v1.4.4 on Wed Jan 26 11:29:13 2011
*filter
:INPUT ACCEPT [12412:4121307]
:FORWARD ACCEPT [100:6540]
:OUTPUT ACCEPT [13217:4749091]
COMMIT
# Completed on Wed Jan 26 11:29:13 2011
В /etc/sysctl.conf
net.ipv4.ip_forward = 1 (с пробелами)