how to find out which chain in iptables in listing

iptables firewall

8,156

with this command: iptables -L -t nat -n --line-numbers -t filter , you can see only filter table rules!

you must separate run :

iptables -L  -t nat -n --line-numbers

for see nat table rules and

iptables -L  -n --line-numbers

for see filter table rules

8,156

PersianGulf

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Updated on September 18, 2022

Comments

PersianGulf over 1 year

Suppose I have the following two entries line of iptables:

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
iptables -A INPUT -s 192.168.1.0/24 -j DROP

So, I have POSTROUTING and INPUT chains. Then I can get the result list with:

iptables -L  -t nat -n --line-numbers -t filter

My result is:

Chain INPUT (policy ACCEPT)
num  target     prot opt source               destination         
1    DROP       tcp  --  0.0.0.0/0            0.0.0.0/0            tcp dpt:70
2    DROP       all  --  10.10.10.0/24        0.0.0.0/0

My quesion is, how can I find out which rule belongs to POSTROUTING and which belongs to INPUT ?

Stéphane Chazelas over 9 years

See also iptables-save to see everything at once
PersianGulf over 9 years

It's not my answer, i need to find out chain of each rule.