![]() If SNAT:T, traffic leaving INTERFACE with a source address in NET1 has it's source address rewritten to the corresponding address in NET2. If DNAT:P, traffic entering INTERFACE and addressed to NET1 has its destination address rewritten to the corresponding address in NET2. In your kernel and iptables (see the output of ![]() Must be DNAT or SNAT followed by :P, :O or :T to perform The columns in the file are as follows (where the column name is followed by a different name in parentheses, the different name is used in the alternate specification syntax). To use this file, your kernel and ip6tables must have RAWPOST table support included. This file is used to map addresses in one network to corresponding addresses in a second network. SYNOPSIS /etc/shorewall/netmap DESCRIPTION Netmap - Shorewall6 NETMAP definition file Shorewall-routestopped(5), shorewall-rules(5), shorewall.Contents NAME SYNOPSIS DESCRIPTION FILES SEE ALSO NOTES NAME Shorewall-providers(5), shorewall-proxyarp(5), shorewall-rtrules(5), Shorewall-masq(5), shorewall-nat(5), shorewall-params(5), shorewall-policy(5), Shorewall-hosts(5), shorewall_interfaces(5), shorewall-ipsets(5), shorewall-maclist(5), SEE ALSO shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), Use '-' if any of the following fields is supplied. Specified as a comma-separated list of port names, port numbers or portĪn entry in this field requires that the PROTO column specify tcp (6), udp (17), sctp SOURCE PORT(S) (sport) - port-number-or-name-list Use '-' if any of the following field is supplied. If no PORT is given, ipp2p is assumed.Īn entry in this field requires that the PROTO column specify icmp (1), tcp (6), udp Leading "-" (example bit for bit-torrent). If the protocol is ipp2p, this column is interpreted as an ipp2p option without the Specified as a numeric type, a numeric type and code separated by a slash (e.g., 3/4), This column is interpreted as the destination icmp-type(s). Port names (from services(5)), port numbers or port ranges if the protocol is icmp, Only packets specifying this protocol willĭEST PORT(S) (dport) - port-number-or-name-list Network for DNAT rules and a DESTINATION network for SNAT rules. Shorewall-interfaces(8) entry that defines ppp+.Īdded in Shorewall 4.4.11. For example, ppp0 in this file will match a Shorewall allows loose matches to wildcard entries in If SNAT:O, traffic originating on the firewall and leaving via INTERFACE with a sourceĪddress in NET1 has it's source address rewritten to the corresponding address in If SNAT:P, traffic entering via INTERFACE with a destination address in NET1 has it's If DNAT:P, traffic entering via INTERFACE and addressed to NET1 has its destinationĪddress rewritten to the corresponding address in NET2. To NET1 has its destination address rewritten to the corresponding address in NET2. If DNAT:O, traffic originating on the firewall and leaving via INTERFACE and addressed Source address rewritten to the corresponding address in NET2. If SNAT or SNAT:T, traffic leaving INTERFACE with a source address in NET1 has it's If DNAT or DNAT:P, traffic entering INTERFACE and addressed to NET1 has itsĭestination address rewritten to the corresponding address in NET2. Your kernel and iptables (see the output of shorewall show capabilities). Stateless NAT requires Rawpost Table support in Must be DNAT or SNAT beginning with Shorewall 4.4.23, may be optionally followed by ![]() Name in parentheses, the different name is used in the alternate specification syntax). The columns in the file are as follows (where the column name is followed by a different To use this file, your kernel and iptables must have NETMAP support included. This file is used to map addresses in one network to corresponding addresses in a second Netmap - Shorewall NETMAP definition file
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