IPTABLES-TRANSLATE(8) | System Manager's Manual | IPTABLES-TRANSLATE(8) |
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
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:
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).
Basic operation examples.
Single command translation:
root@machine:~# iptables-translate -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -j ACCEPT nft add rule ip filter INPUT tcp dport 22 ct state new counter accept root@machine:~# ip6tables-translate -A FORWARD -i eth0 -o eth3 -p udp -m multiport --dports 111,222 -j ACCEPT nft 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.txt root@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 ACCEPT COMMIT # Completed on Sat Dec 24 14:26:40 2016 root@machine:~# iptables-restore-translate -f save.txt # Translated by iptables-restore-translate v1.6.0 on Sat Dec 24 14:26:59 2016 add table ip filter add 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 accept root@machine:~# iptables-restore-translate -f save.txt > ruleset.nft root@machine:~# nft -f ruleset.nft root@machine:~# nft list ruleset table 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; } }
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/.
The nftables framework is written by the Netfilter project (https://www.netfilter.org).
This manual page was written by Arturo Borrero Gonzalez <arturo@netfilter.org>.
This documentation is free/libre under the terms of the GPLv2+.
May 14, 2019 |