Network
UDP Extensions
These extensions are loaded if the protocol udp is specified or "-m udp" is specified. It
provides the following options:
--source-port [!] [port[:port]]
--destination-port [!] [port[:port]]
ICMP Extension
This extension is loaded if the protocol icmp is specified or "-m icmp" is specified. It
provides the following option:
ICMP extension
--icmp-type [!] typename
Multiport Extension
This module matches a set of source or destination ports. Up to 15 ports can be specified.
It can only be used in conjunction with -m tcp or -m udp.
Multiport extension
--source-port [port[,port]]
--destination-port [port[,port]]
--port [port[,port]]
UDP extension
Table 4.7: ICMP extensions
Table 4.8: Multiport extensions
Source port or port range specification. See the
description of the - -source-port option of the TCP
extension for details.
Destination port or port range specification. See the
description of the - -destination-port option of the TCP
extension for details.
Table 4.6: UDP extensions
This allows specification of the ICMP type, which can be a
numeric ICMP type, or one of the ICMP type names shown by
the command:
iptables -p icmp -h
Match if the source port is one of the given ports.
Match if the destination port is one of the given ports.
Match if the both the source and destination port are equal
to each other and to one of the given ports.
Description
Description
Description
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