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diff --git a/interface-definitions/include/nat-translation-options.xml.i b/interface-definitions/include/nat-translation-options.xml.i
index 6b95de045..c8900590f 100644
--- a/interface-definitions/include/nat-translation-options.xml.i
+++ b/interface-definitions/include/nat-translation-options.xml.i
@@ -1,53 +1,49 @@
<!-- include start from nat-translation-options.xml.i -->
<node name="options">
<properties>
<help>Translation options</help>
</properties>
<children>
<leafNode name="address-mapping">
<properties>
<help>Address mapping options</help>
<completionHelp>
<list>persistent random</list>
</completionHelp>
<valueHelp>
<format>persistent</format>
<description>Gives a client the same source or destination-address for each connection</description>
</valueHelp>
<valueHelp>
<format>random</format>
<description>Random source or destination address allocation for each connection</description>
</valueHelp>
<constraint>
<regex>(persistent|random)</regex>
</constraint>
</properties>
<defaultValue>random</defaultValue>
</leafNode>
<leafNode name="port-mapping">
<properties>
<help>Port mapping options</help>
<completionHelp>
- <list>random fully-random none</list>
+ <list>random none</list>
</completionHelp>
<valueHelp>
<format>random</format>
<description>Randomize source port mapping</description>
</valueHelp>
- <valueHelp>
- <format>fully-random</format>
- <description>Full port randomization</description>
- </valueHelp>
<valueHelp>
<format>none</format>
<description>Do not apply port randomization</description>
</valueHelp>
<constraint>
- <regex>(random|fully-random|none)</regex>
+ <regex>(random|none)</regex>
</constraint>
</properties>
<defaultValue>none</defaultValue>
</leafNode>
</children>
</node>
<!-- include end -->
diff --git a/interface-definitions/include/version/nat-version.xml.i b/interface-definitions/include/version/nat-version.xml.i
index 656da6e14..173e91ed3 100644
--- a/interface-definitions/include/version/nat-version.xml.i
+++ b/interface-definitions/include/version/nat-version.xml.i
@@ -1,3 +1,3 @@
<!-- include start from include/version/nat-version.xml.i -->
-<syntaxVersion component='nat' version='7'></syntaxVersion>
+<syntaxVersion component='nat' version='8'></syntaxVersion>
<!-- include end -->
diff --git a/smoketest/config-tests/nat-basic b/smoketest/config-tests/nat-basic
new file mode 100644
index 000000000..9fea08b02
--- /dev/null
+++ b/smoketest/config-tests/nat-basic
@@ -0,0 +1,85 @@
+set interfaces ethernet eth0 offload rps
+set interfaces ethernet eth0 disable
+set interfaces ethernet eth1 offload gro
+set interfaces ethernet eth1 offload gso
+set interfaces ethernet eth1 offload rps
+set interfaces ethernet eth1 offload sg
+set interfaces ethernet eth1 offload tso
+set interfaces ethernet eth2 offload gro
+set interfaces ethernet eth2 offload gso
+set interfaces ethernet eth2 offload rps
+set interfaces ethernet eth2 offload sg
+set interfaces ethernet eth2 offload tso
+set interfaces ethernet eth3 offload gro
+set interfaces ethernet eth3 offload gso
+set interfaces ethernet eth3 offload rps
+set interfaces ethernet eth3 offload sg
+set interfaces ethernet eth3 offload tso
+set interfaces bonding bond10 hash-policy 'layer3+4'
+set interfaces bonding bond10 member interface 'eth2'
+set interfaces bonding bond10 member interface 'eth3'
+set interfaces bonding bond10 mode '802.3ad'
+set interfaces bonding bond10 vif 50 address '192.168.189.1/24'
+set interfaces loopback lo
+set interfaces pppoe pppoe7 authentication password 'vyos'
+set interfaces pppoe pppoe7 authentication username 'vyos'
+set interfaces pppoe pppoe7 dhcpv6-options pd 0 interface bond10.50 address '1'
+set interfaces pppoe pppoe7 dhcpv6-options pd 0 length '56'
+set interfaces pppoe pppoe7 ip adjust-mss '1452'
+set interfaces pppoe pppoe7 ipv6 address autoconf
+set interfaces pppoe pppoe7 ipv6 adjust-mss '1432'
+set interfaces pppoe pppoe7 mtu '1492'
+set interfaces pppoe pppoe7 no-peer-dns
+set interfaces pppoe pppoe7 source-interface 'eth1'
+set service lldp interface eth1 disable
+set service ntp allow-client address '192.168.189.0/24'
+set service ntp server time1.vyos.net
+set service ntp server time2.vyos.net
+set service ntp listen-address '192.168.189.1'
+set service ssh dynamic-protection
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 lease '604800'
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 option default-router '192.168.189.1'
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 option domain-name 'vyos.net'
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 option name-server '1.1.1.1'
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 option name-server '9.9.9.9'
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 range 0 start '192.168.189.20'
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 range 0 stop '192.168.189.254'
+set service dhcp-server shared-network-name LAN subnet 192.168.189.0/24 subnet-id '1'
+set service router-advert interface bond10.50 prefix ::/64 preferred-lifetime '2700'
+set service router-advert interface bond10.50 prefix ::/64 valid-lifetime '5400'
+set system config-management commit-revisions '100'
+set system domain-name 'vyos.net'
+set system host-name 'R1'
+set system login user vyos authentication encrypted-password '$6$2Ta6TWHd/U$NmrX0x9kexCimeOcYK1MfhMpITF9ELxHcaBU/znBq.X2ukQOj61fVI2UYP/xBzP4QtiTcdkgs7WOQMHWsRymO/'
+set system login user vyos authentication plaintext-password ''
+set system name-server '1.1.1.1'
+set system name-server '9.9.9.9'
+set system console device ttyS0 speed '115200'
+set nat destination rule 1000 destination port '3389'
+set nat destination rule 1000 inbound-interface name 'pppoe7'
+set nat destination rule 1000 protocol 'tcp'
+set nat destination rule 1000 translation address '192.168.189.5'
+set nat destination rule 1000 translation port '3389'
+set nat destination rule 10022 destination port '10022'
+set nat destination rule 10022 inbound-interface name 'pppoe7'
+set nat destination rule 10022 protocol 'tcp'
+set nat destination rule 10022 translation address '192.168.189.2'
+set nat destination rule 10022 translation port '22'
+set nat destination rule 10300 destination port '10300'
+set nat destination rule 10300 inbound-interface name 'pppoe7'
+set nat destination rule 10300 protocol 'udp'
+set nat destination rule 10300 translation address '192.168.189.2'
+set nat destination rule 10300 translation port '10300'
+set nat source rule 10 outbound-interface name 'eth1'
+set nat source rule 10 source address '192.168.189.0/24'
+set nat source rule 10 translation address 'masquerade'
+set nat source rule 10 translation options port-mapping 'random'
+set nat source rule 50 outbound-interface name 'pppoe7'
+set nat source rule 50 protocol 'udp'
+set nat source rule 50 source address '192.168.189.2'
+set nat source rule 50 source port '10300'
+set nat source rule 50 translation address 'masquerade'
+set nat source rule 50 translation port '10300'
+set nat source rule 100 outbound-interface name 'pppoe7'
+set nat source rule 100 source address '192.168.189.0/24'
+set nat source rule 100 translation address 'masquerade'
diff --git a/smoketest/configs/nat-basic b/smoketest/configs/nat-basic
new file mode 100644
index 000000000..52f369f34
--- /dev/null
+++ b/smoketest/configs/nat-basic
@@ -0,0 +1,256 @@
+interfaces {
+ bonding bond10 {
+ hash-policy "layer3+4"
+ member {
+ interface "eth2"
+ interface "eth3"
+ }
+ mode "802.3ad"
+ vif 50 {
+ address "192.168.189.1/24"
+ }
+ }
+ ethernet eth0 {
+ disable
+ offload {
+ gro
+ gso
+ rps
+ sg
+ tso
+ }
+ }
+ ethernet eth1 {
+ offload {
+ gro
+ gso
+ rps
+ sg
+ tso
+ }
+ }
+ ethernet eth2 {
+ offload {
+ gro
+ gso
+ rps
+ sg
+ tso
+ }
+ }
+ ethernet eth3 {
+ offload {
+ gro
+ gso
+ rps
+ sg
+ tso
+ }
+ }
+ loopback lo {
+ }
+ pppoe pppoe7 {
+ authentication {
+ password "vyos"
+ username "vyos"
+ }
+ dhcpv6-options {
+ pd 0 {
+ interface bond10.50 {
+ address "1"
+ }
+ length "56"
+ }
+ }
+ ip {
+ adjust-mss "1452"
+ }
+ ipv6 {
+ address {
+ autoconf
+ }
+ adjust-mss "1432"
+ }
+ mtu "1492"
+ no-peer-dns
+ source-interface "eth1"
+ }
+}
+nat {
+ destination {
+ rule 1000 {
+ destination {
+ port "3389"
+ }
+ inbound-interface {
+ name "pppoe7"
+ }
+ protocol "tcp"
+ translation {
+ address "192.168.189.5"
+ port "3389"
+ }
+ }
+ rule 10022 {
+ destination {
+ port "10022"
+ }
+ inbound-interface {
+ name "pppoe7"
+ }
+ protocol "tcp"
+ translation {
+ address "192.168.189.2"
+ port "22"
+ }
+ }
+ rule 10300 {
+ destination {
+ port "10300"
+ }
+ inbound-interface {
+ name "pppoe7"
+ }
+ protocol "udp"
+ translation {
+ address "192.168.189.2"
+ port "10300"
+ }
+ }
+ }
+ source {
+ rule 10 {
+ outbound-interface {
+ name "eth1"
+ }
+ source {
+ address "192.168.189.0/24"
+ }
+ translation {
+ address "masquerade"
+ options {
+ port-mapping fully-random
+ }
+ }
+ }
+ rule 50 {
+ outbound-interface {
+ name "pppoe7"
+ }
+ protocol "udp"
+ source {
+ address "192.168.189.2"
+ port "10300"
+ }
+ translation {
+ address "masquerade"
+ port "10300"
+ }
+ }
+ rule 100 {
+ outbound-interface {
+ name "pppoe7"
+ }
+ source {
+ address "192.168.189.0/24"
+ }
+ translation {
+ address "masquerade"
+ }
+ }
+ }
+}
+service {
+ dhcp-server {
+ shared-network-name LAN {
+ subnet 192.168.189.0/24 {
+ default-router "192.168.189.1"
+ domain-name "vyos.net"
+ lease "604800"
+ name-server "1.1.1.1"
+ name-server "9.9.9.9"
+ range 0 {
+ start "192.168.189.20"
+ stop "192.168.189.254"
+ }
+ }
+ }
+ }
+ lldp {
+ interface all {
+ }
+ interface eth1 {
+ disable
+ }
+ }
+ ntp {
+ allow-client {
+ address "192.168.189.0/24"
+ }
+ listen-address "192.168.189.1"
+ server time1.vyos.net {
+ }
+ server time2.vyos.net {
+ }
+ }
+ router-advert {
+ interface bond10.50 {
+ prefix ::/64 {
+ preferred-lifetime "2700"
+ valid-lifetime "5400"
+ }
+ }
+ }
+ ssh {
+ disable-host-validation
+ dynamic-protection {
+ }
+ }
+}
+system {
+ config-management {
+ commit-revisions "100"
+ }
+ conntrack {
+ modules {
+ ftp
+ h323
+ nfs
+ pptp
+ sip
+ sqlnet
+ tftp
+ }
+ }
+ console {
+ device ttyS0 {
+ speed "115200"
+ }
+ }
+ domain-name "vyos.net"
+ host-name "R1"
+ login {
+ user vyos {
+ authentication {
+ encrypted-password $6$2Ta6TWHd/U$NmrX0x9kexCimeOcYK1MfhMpITF9ELxHcaBU/znBq.X2ukQOj61fVI2UYP/xBzP4QtiTcdkgs7WOQMHWsRymO/
+ plaintext-password ""
+ }
+ }
+ }
+ name-server "1.1.1.1"
+ name-server "9.9.9.9"
+ syslog {
+ global {
+ facility all {
+ level "info"
+ }
+ facility local7 {
+ level "debug"
+ }
+ }
+ }
+}
+
+// Warning: Do not remove the following line.
+// vyos-config-version: "bgp@5:broadcast-relay@1:cluster@2:config-management@1:conntrack@5:conntrack-sync@2:container@2:dhcp-relay@2:dhcp-server@8:dhcpv6-server@1:dns-dynamic@4:dns-forwarding@4:firewall@15:flow-accounting@1:https@6:ids@1:interfaces@32:ipoe-server@3:ipsec@13:isis@3:l2tp@9:lldp@2:mdns@1:monitoring@1:nat@7:nat66@3:ntp@3:openconnect@3:ospf@2:pim@1:policy@8:pppoe-server@10:pptp@5:qos@2:quagga@11:rip@1:rpki@2:salt@1:snmp@3:ssh@2:sstp@6:system@27:vrf@3:vrrp@4:vyos-accel-ppp@2:wanloadbalance@3:webproxy@2"
+// Release version: 1.4.0-epa3
diff --git a/src/migration-scripts/nat/7-to-8 b/src/migration-scripts/nat/7-to-8
new file mode 100755
index 000000000..ab2ffa6d3
--- /dev/null
+++ b/src/migration-scripts/nat/7-to-8
@@ -0,0 +1,62 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2024 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# T6345: random - In kernel 5.0 and newer this is the same as fully-random.
+# In earlier kernels the port mapping will be randomized using a seeded
+# MD5 hash mix using source and destination address and destination port.
+# drop fully-random from CLI
+
+from sys import argv,exit
+from vyos.configtree import ConfigTree
+
+if len(argv) < 2:
+ print("Must specify file name!")
+ exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+ config_file = f.read()
+
+config = ConfigTree(config_file)
+
+if not config.exists(['nat']):
+ # Nothing to do
+ exit(0)
+
+for direction in ['source', 'destination']:
+ # If a node doesn't exist, we obviously have nothing to do.
+ if not config.exists(['nat', direction]):
+ continue
+
+ # However, we also need to handle the case when a 'source' or 'destination' sub-node does exist,
+ # but there are no rules under it.
+ if not config.list_nodes(['nat', direction]):
+ continue
+
+ for rule in config.list_nodes(['nat', direction, 'rule']):
+ port_mapping = ['nat', direction, 'rule', rule, 'translation', 'options', 'port-mapping']
+ if config.exists(port_mapping):
+ tmp = config.return_value(port_mapping)
+ if tmp == 'fully-random':
+ config.set(port_mapping, value='random')
+
+try:
+ with open(file_name, 'w') as f:
+ f.write(config.to_string())
+except OSError as e:
+ print(f'Failed to save the modified config: {e}')
+ exit(1)

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