libipt_realm.man revision ca9d8c221f0e10cc8dd0c79e922a1dc73ae0ca5f 
1This matches the routing realm.  Routing realms are used in complex routing
2setups involving dynamic routing protocols like BGP.
3.TP
4.BI "--realm " "[!] " "value[/mask]"
5Matches a given realm number (and optionally mask). If not a number, value
6can be a named realm from /etc/iproute2/rt_realms (mask can not be used in
7that case).
8