Iptables (20.04) won't accept my prerouting from 18.04

[jobe77x]

I've just installed a clean Ubuntu server 20.04, and was going to add some pre/post routing rules, but I can't get them to be added.

I've tried

iptables -A PREROUTING -i enp0s3 -p tcp -m tcp --dport 49620 -j DNAT --to-destination 192.168.2.53:22222

but getting the response:

iptables: No chain/target/match by that name.

This worked without any issues on my older 18.04 server.
I've searched for answer how to add a chain, but can't find anything about it..

[Tadaen_Sylvermane]

I'm mediocre at best with iptables but it looks like you aren't passing a table to it.

https://my.esecuredata.com/index.php...sing-iptables/

Notice the -t flag.

[jobe77x]

that made the error message go away, but when I'm checking with "iptables -L" it's not there.

Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination