NAME
exclusion - Exclude a set of hosts from a definition in a shorewall configuration file.
SYNOPSIS
! address-or-range[, address-or-range] ...
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.,
192.168.1.4) or they may be network addresses in CIDR format (e.g.,
192.168.1.0/24). If your kernel and iptables 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.
EXAMPLES
Example 1 - All IPv4 addresses except 192.168.3.4
!192.168.3.4
Example 2 - All IPv4 addresses except the network 192.168.1.0/24 and the host 10.2.3.4
!192.168.1.0/24,10.1.3.4
Example 3 - All IPv4 addresses except the range 192.168.1.3-192.168.1.12 and the network 10.0.0.0/8
!192.168.1.3-192.168.1.12,10.0.0.0/8
Example 4 - The network 192.168.1.0/24 except hosts 192.168.1.3 and 192.168.1.9
192.168.1.0/24!192.168.1.3,192.168.1.9
FILES
/etc/shorewall/hosts
/etc/shorewall/masq
/etc/shorewall/rules
/etc/shorewall/tcrules
SEE ALSO
shorewall(8), shorewall-accounting(5), shorewall-actions(5),
shorewall-blacklist(5), shorewall-hosts(5), shorewall-interfaces(5),
shorewall-ipsec(5), shorewall-maclist(5), shorewall-masq(5),
shorewall-nat(5), shorewall-netmap(5), shorewall-params(5),
shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5),
shorewall-route_rules(5), shorewall-routestopped(5), shorewall-rules(5),
shorewall.conf(5), shorewall-tcclasses(5), shorewall-tcdevices(5),
shorewall-tcrules(5), shorewall-tos(5), shorewall-tunnels(5),
shorewall-zones(5)