tcfilters — Shorewall u32 classifier rules file
/etc/shorewall/tcfilters
Entries in this file cause packets to be classified for traffic shaping.
Beginning with Shorewall 4.4.15, the file may contain entries for both IPv4 and IPv6. By default, all rules apply to IPv4 but that can be changed by inserting a line as follows:
Following entriess apply to IPv4.
Following entries apply to IPv6
Following entries apply to both IPv4 and IPv6. Each entry is processed twice; once for IPv4 and once for IPv6.
The columns in the file are as follows.
The name or number of an interface
defined in shorewall-tcdevices(5)
followed by a class
number defined for
that interface in shorewall-tcclasses(5).
Source of the packet. May be a host or network
address
. DNS names are not
allowed.
Destination of the packet. May be a host or network
address
. DNS names are not
allowed.
You may exclude certain hosts from the set already defined through use of an exclusion (see shorewall-exclusion(5)).
Protocol.
Destination Ports. A Port name (from services(5)) or a port number; if the protocol is icmp, this column is interpreted as the destination icmp-type(s).
Source port.
Specifies the value of the TOS field. The
tos
value can be any of the
following:
tos-minimize-delay
tos-maximuze-throughput
tos-maximize-reliability
tos-minimize-cost
tos-normal-service
hex-number
hex-number
/hex-number
The hex-number
s must be exactly two
digits (e.g., 0x04)x.
Must be a power of 2 between 32 and 8192 inclusive. Packets
with a total length that is strictly less than the specified
number
will match the rule.
Place all 'ping' traffic on interface 1 in class 10. Note that ALL cannot be used because IPv4 ICMP and IPv6 ICMP are two different protocols.
#CLASS SOURCE DEST PROTO DEST # PORT IPV4 1:10 0.0.0.0/0 0.0.0.0/0 icmp echo-request 1:10 0.0.0.0/0 0.0.0.0/0 icmp echo-reply IPV6 1:10 ::/0 ::/0 icmp6 echo-request 1:10 ::/0 ::/0 icmp6 echo-reply
http://shorewall.net/traffic_shaping.htm
http://shorewall.net/MultiISP.html
http://shorewall.net/PacketMarking.html
shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-ecn(5), shorewall-exclusion(5), shorewall-hosts(5), shorewall_interfaces(5), shorewall-ipsets(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-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5)