shorewall6-zones5zonesShorewall6 zone declaration file/etc/shorewall6/zonesDescriptionThe /etc/shorewall6/zones file declares your network zones. You
specify the hosts in each zone through entries in
/etc/shorewall6/interfaces or
/etc/shorewall6/hosts.The columns in the file are as follows.ZONE -
zone[:parent-zone[,parent-zone]...]Name of the zone. The names "all",
"none", "SOURCE" and "DEST" are reserved and may not be used as zone
names. The maximum length of a zone name is determined by the
setting of the LOGFORMAT option in shorewall6.conf(5). With the
default LOGFORMAT, zone names can be at most 5 characters
long.
The maximum length of an iptables log prefix is 29 bytes. As
explained in shorewall6.conf (5), the default
LOGPREFIX formatting string is “Shorewall:%s:%s:” where the first
%s is replaced by the chain name and the second is replaced by the
disposition.The default formatting string has 12 fixed characters
("Shorewall" and three colons).The longest of the standard dispositions are ACCEPT and
REJECT which have 6 characters each.The canonical name for the chain containing the rules
for traffic going from zone 1 to zone 2 is "<zone
1>2<zone 2>".So if M is the maximum zone name length, such chains can
have length 2*M + 1.12 + 6 + 2*M + 1 = 29 which reduces to2*M = 29 - 12 - 6 - 1 = 10 orM = 5
The order in which Shorewall6 matches addresses from packets
to zones is determined by the order of zone declarations. Where a
zone is nested in one or more other zones, you may either ensure
that the nested zone precedes its parents in this file, or you may
follow the (sub)zone name by ":" and a comma-separated list of the
parent zones. The parent zones must have been declared in earlier
records in this file. See shorewall6-nesting(5) for
additional information.Example:#ZONE TYPE OPTIONS IN OPTIONS OUT OPTIONS
a ipv6
b ipv6
c:a,b ipv6Currently, Shorewall6 uses this information to reorder the
zone list so that parent zones appear after their subzones in the
list. The IMPLICIT_CONTINUE option in shorewall6.conf(5) can also
create implicit CONTINUE policies to/from the subzone.Where an ipsec zone is
explicitly included as a child of an ipv6 zone, the ruleset allows CONTINUE
policies (explicit or implicit) to work as expected.In the future, Shorewall6 may make additional use of nesting
information.TYPEipv6This is the standard Shorewall6 zone type and is the
default if you leave this column empty or if you enter "-" in
the column. Communication with some zone hosts may be
encrypted. Encrypted hosts are designated using the
'ipsec'option in shorewall6-hosts(5).ipsec (or ipsec6)Communication with all zone hosts is encrypted. Your
kernel and ip6tables must include policy match support.firewallDesignates the firewall itself. You must have exactly
one 'firewall' zone. No options are permitted with a
'firewall' zone. The name that you enter in the ZONE column
will be stored in the shell variable $FW which you may use in
other configuration files to designate the firewall
zone.bport (or bport6)The zone is associated with one or more ports on a
single bridge.vserverAdded in Shorewall 4.4.11 Beta 2 - A zone composed of
Linux-vserver guests. The zone contents must be defined in
shorewall-hosts
(5).Vserver zones are implicitly handled as subzones of the
firewall zone.OPTIONS, IN OPTIONS and OUT
OPTIONS - [option[,option]...]A comma-separated list of options. With the exception of the
option, these only apply to TYPE
zones.reqid=numberwhere number is specified using
setkey(8) using the 'unique:number option
for the SPD level.spi=<number>where number is the SPI of the SA
used to encrypt/decrypt packets.proto=ah|esp|ipcompIPSEC Encapsulation Protocolmss=numbersets the MSS field in TCP packets. If you supply this
option, you should also set FASTACCEPT=No in shorewall6.conf(5) to
insure that both the SYN and SYN,ACK packets have their MSS
field adjusted.mode=transport|tunnelIPSEC modetunnel-src=address[/mask]only available with mode=tunneltunnel-dst=address[/mask]only available with mode=tunnelstrictMeans that packets must match all rules.nextSeparates rules; can only be used with strictThe options in the OPTIONS column are applied to both incoming
and outgoing traffic. The IN OPTIONS are applied to incoming traffic
(in addition to OPTIONS) and the OUT OPTIONS are applied to outgoing
traffic.If you wish to leave a column empty but need to make an entry
in a following column, use "-".FILES/etc/shorewall6/zonesSee ALSOhttp://www.shorewall.net/Multiple_Zones.html.shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5),
shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5),
shorewall6-maclist(5), shorewall6-nesting(8), 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)