Provided by: shorewall6_4.4.26.1-1_all bug

NAME

       exclusion - Exclude a set of hosts from a definition in a shorewall6
       configuration file.

SYNOPSIS

       !address-or-range[,address-or-range]...

       !zone-name[,zone-name]...

DESCRIPTION

       Exclusion is used when you wish to exclude one or more addresses from a
       definition. An exclaimation point is followed by a comma-separated list
       of addresses. The addresses may be single host addresses (e.g.,
       fe80::2a0:ccff:fedb:31c4) or they may be network addresses in CIDR
       format (e.g., fe80::2a0:ccff:fedb:31c4/64). If your kernel and
       ip6tables include iprange support, you may also specify ranges of ip
       addresses of the form lowaddress-highaddress

       No embedded whitespace is allowed.

       Exclusion can appear after a list of addresses and/or address ranges.
       In that case, the final list of address is formed by taking the first
       list and then removing the addresses defined in the exclusion.

       Beginning in Shorewall 4.4.13, the second form of exclusion is allowed
       after all and any in the SOURCE and DEST columns of
       /etc/shorewall/rules. It allows you to omit arbitrary zones from the
       list generated by those key words.

           Warning
           If you omit a sub-zone and there is an explicit or explicit
           CONTINUE policy, a connection to/from that zone can still be
           matched by the rule generated for a parent zone.

           For example:

           /etc/shorewall6/zones:

               #ZONE          TYPE
               z1             ip
               z2:z1          ip
               ...

           /etc/shorewall6/policy:

               #SOURCE         DEST          POLICY
               z1              net           CONTINUE
               z2              net           REJECT

           /etc/shorewall6/rules:

               #ACTION         SOURCE        DEST        PROTO         DEST
               #                                                       PORT(S)
               ACCEPT          all!z2        net         tcp           22

           In this case, SSH connections from z2 to net will be accepted by
           the generated z1 to net ACCEPT rule.

FILES

       /etc/shorewall6/hosts

       /etc/shorewall6/masq

       /etc/shorewall6/rules

       /etc/shorewall6/tcrules

SEE ALSO

       shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5),
       shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5),
       shorewall6-maclist(5), shoewall6-netmap(5),shorewall6-params(5),
       shorewall6-policy(5), shorewall6-providers(5),
       shorewall6-route_rules(5), shorewall6-routestopped(5),
       shorewall6-rules(5), shorewall6.conf(5), shorewall6-secmarks(5),
       shorewall6-tcclasses(5), shorewall6-tcdevices(5),
       shorewall6-tcrules(5), shorewall6-tos(5), shorewall6-tunnels(5),
       shorewall-zones(5)

[FIXME: source]                   12/13/2011            SHOREWALL6-EXCLUSIO(5)