NAME

iptables-translate — translation tool to migrate from iptables to nftables

ip6tables-translate — translation tool to migrate from ip6tables to nftables

ebtables-translate — translation tool to migrate from ebtables to nftables

DESCRIPTION

There is a set of tools to help the system administrator translate a given ruleset from iptables(8), ip6tables(8) and ebtables(8) to nftables(8).

The available commands are:

•

iptables-translate

•

iptables-restore-translate

•

ip6tables-translate

•

ip6tables-restore-translate

•

ebtables-translate

USAGE

They take as input the original iptables(8)/ip6tables(8)/ebtables(8) syntax and output the native nftables(8) syntax.

The iptables-restore-translate tool reads a ruleset in the syntax produced by iptables-save(8). Likewise, the ip6tables-restore-translate tool reads one produced by ip6tables-save(8). No ruleset modifications occur, these tools are text converters only.

The iptables-translate reads a command line as if it was entered to iptables(8), and ip6tables-translate reads a command like as if it was entered to ip6tables(8).

EXAMPLES

Basic operation examples.

Single command translation:

root@machine:~# iptables-translate -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -j ACCEPTnft add rule ip filter INPUT tcp dport 22 ct state new counter acceptroot@machine:~# ip6tables-translate -A FORWARD -i eth0 -o eth3 -p udp -m multiport --dports 111,222 -j ACCEPTnft add rule ip6 filter FORWARD iifname eth0 oifname eth3 meta l4proto udp udp dport { 111,222} counter accept

Whole ruleset translation:

root@machine:~# iptables-save > save.txtroot@machine:~# cat save.txt# Generated by iptables-save v1.6.0 on Sat Dec 24 14:26:40 2016*filter:INPUT ACCEPT [5166:1752111]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [5058:628693]-A FORWARD -p tcp -m tcp --dport 22 -m conntrack --ctstate NEW -j ACCEPTCOMMIT# Completed on Sat Dec 24 14:26:40 2016root@machine:~# iptables-restore-translate -f save.txt# Translated by iptables-restore-translate v1.6.0 on Sat Dec 24 14:26:59 2016add table ip filteradd chain ip filter INPUT { type filter hook input priority 0; }add chain ip filter FORWARD { type filter hook forward priority 0; }add chain ip filter OUTPUT { type filter hook output priority 0; }add rule ip filter FORWARD tcp dport 22 ct state new counter acceptroot@machine:~# iptables-restore-translate -f save.txt > ruleset.nftroot@machine:~# nft -f ruleset.nftroot@machine:~# nft list rulesettable ip filter {	chain INPUT {		type filter hook input priority 0; policy accept;	}	chain FORWARD {		type filter hook forward priority 0; policy accept;		tcp dport ssh ct state new counter packets 0 bytes 0 accept	}	chain OUTPUT {		type filter hook output priority 0; policy accept;	}}

LIMITATIONS

Some (few) extensions may be not supported (or fully-supported) for whatever reason (for example, they were considered obsolete, or we didn't have the time to work on them).

There is no translation available for arptables(8).

To get up-to-date information about this, please head to https://wiki.nftables.org/.

SEE ALSO

nft(8), iptables(8)

AUTHORS

The nftables framework is written by the Netfilter project (https://www.netfilter.org).

This manual page was written by Arturo Borrero Gonzalez <[email protected]>.

This documentation is free/libre under the terms of the GPLv2+.