NAME | DESCRIPTION | USAGE | EXAMPLES | LIMITATIONS | SEE ALSO | AUTHORS | COLOPHON

XTABLES-TRANSLATE(8)       System Manager's Manual      XTABLES-TRANSLATE(8)

NAME         top

       xtables-translate  -  translation  tools  to migrate from iptables to
       nftables

DESCRIPTION         top

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

       The available commands are:

       · iptables-translate

       · iptables-restore-translate

       · ip6tables-translate

       · ip6tables-restore-translate

USAGE         top

       They take as input the original iptables(8)/ip6tables(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).

       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         top

       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;
            }
       }

LIMITATIONS         top

       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 are no translations available for ebtables(8) and arptables(8).

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

SEE ALSO         top

       nft(8), xtables-compat(8)

AUTHORS         top

       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+.

COLOPHON         top

       This page is part of the iptables (administer and maintain packet
       filter rules) project.  Information about the project can be found at
       ⟨http://www.netfilter.org/⟩.  If you have a bug report for this man‐
       ual page, see ⟨http://bugzilla.netfilter.org/⟩.  This page was
       obtained from the project's upstream Git repository
       ⟨http://bugzilla.netfilter.org/⟩ on 2018-04-30.  (At that time, the
       date of the most recent commit that was found in the repository was
       2018-04-29.)  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-to-
       date source for the page, or you have corrections or improvements to
       the information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

                                Mar 16, 2018            XTABLES-TRANSLATE(8)

Pages that refer to this page: xtables-compat(8)