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--- tips:port_mirror_commands [2020/10/14 15:30] – created navaneeth
+++ tips:port_mirror_commands [2020/10/14 15:47] (current) – navaneeth
@@ Line 7: / Line 7: @@
 We need both inbound and outbound traffic, so using the commands,
 <code>iptables -t mangle -I PREROUTING -j TEE –gateway 10.20.0.129</code>
-“PREROUTING” is before routing decision happens
+**“PREROUTING”** is before routing decision happens
 <code>iptables -t mangle -I POSTROUTING -j TEE –gateway 10.20.0.129</code>
-“POSTROUTING” is after routing decision
+**“POSTROUTING”** is after routing decision
+===== 2. Ping Windows using tcpdump  =====
+After the rules are applied, ping “Windows XP client” from “Ubuntu” using tcpdump
+<code>tcpdump -i any -n</code>
+===== 3. Viewing the iptables =====
+To view the iptables from command line, use the commands.
+<code>iptables -t mangle -S</code>
+or
+<code>iptables -t mangle -L</code>
+===== 4. Removing the iptables =====
+To remove the rules for iptables, use the following commands.
+<code>iptables -t mangle -D PREROUTING -j TEE –gateway 10.20.0.129</code>
+<code>iptables -t mangle -D POSTROUTING -j TEE –gateway 10.20.0.129</code>