[root@lacl-001 ~]$iptables -A POSTROUTING -s 192.168.103.0/255.255.255.0 -o eth0 -j SNAT --to-source 202.115.169.56
iptables: No chain/target/match by that name
[root@lacl-001 ~]$
[root@lacl-001 ~]$iptables -A nat -s 192.168.103.0/255.255.255.0 -o eth0 -j SNAT --to-source 202.115.169.56
iptables: No chain/target/match by that name
[root@lacl-001 ~]$iptables -A NAT -s 192.168.103.0/255.255.255.0 -o eth0 -j SNAT --to-source 202.115.169.56
iptables: No chain/target/match by that name
[root@lacl-001 ~]$iptables -a -nat -s 192.168.103.0/255.255.255.0 -o eth0 -j SNAT --to-source 202.115.169.56
iptables v1.2.8: Unknown arg `-a'
Try `iptables -h' or 'iptables --help' for more information.
[root@lacl-001 ~]$