Changes between Version 3 and Version 4 of Iptables

Timestamp:

01/23/25 03:25:06 (4 weeks ago)

Author:

krit

Comment:

--

Iptables

@@ -37 +37 @@
 }}}
 For unblock just change -A to -D on the above command
+
+
+== IP table src NAT
+Ref [https://gist.github.com/tomasinouk/eec152019311b09905cd here]
+
+All packets leaving eth1 will change source IP to 192.168.20.1
+{{{
+iptables -t nat -A POSTROUTING -o eth1 -j SNAT --to 192.168.20.1
+}}}
+
+We save iptable as persistent rule when reboot
+{{{
+~]# apt install iptables-persistent
+~]# iptables-save > /etc/iptables/rules.v4
+OR
+~]# ip6tables-save > /etc/iptables/rules.v6
+~]# iptable -L -t nat
+}}}