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# iifname "eth0" tcp dport 80-90 dnat to 192.168.3.2
ip test-ip4 prerouting
[ meta load iifname => reg 1 ]
[ cmp eq reg 1 0x30687465 0x00000000 0x00000000 0x00000000 ]
[ payload load 1b @ network header + 9 => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp gte reg 1 0x00005000 ]
[ cmp lte reg 1 0x00005a00 ]
[ immediate reg 1 0x0203a8c0 ]
[ nat dnat ip addr_min reg 1 addr_max reg 0 ]
# iifname "eth0" tcp dport != 80-90 dnat to 192.168.3.2
ip test-ip4 prerouting
[ meta load iifname => reg 1 ]
[ cmp eq reg 1 0x30687465 0x00000000 0x00000000 0x00000000 ]
[ payload load 1b @ network header + 9 => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp lt reg 1 0x00005000 ]
[ cmp gt reg 1 0x00005a00 ]
[ immediate reg 1 0x0203a8c0 ]
[ nat dnat ip addr_min reg 1 addr_max reg 0 ]
# iifname "eth0" tcp dport {80, 90, 23} dnat to 192.168.3.2
__set%d test-ip4 3
__set%d test-ip4 0
element 00005000 : 0 [end] element 00005a00 : 0 [end] element 00001700 : 0 [end]
ip test-ip4 prerouting
[ meta load iifname => reg 1 ]
[ cmp eq reg 1 0x30687465 0x00000000 0x00000000 0x00000000 ]
[ payload load 1b @ network header + 9 => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ lookup reg 1 set __set%d ]
[ immediate reg 1 0x0203a8c0 ]
[ nat dnat ip addr_min reg 1 addr_max reg 0 ]
# iifname "eth0" tcp dport != 23-34 dnat to 192.168.3.2
ip test-ip4 prerouting
[ meta load iifname => reg 1 ]
[ cmp eq reg 1 0x30687465 0x00000000 0x00000000 0x00000000 ]
[ payload load 1b @ network header + 9 => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp lt reg 1 0x00001700 ]
[ cmp gt reg 1 0x00002200 ]
[ immediate reg 1 0x0203a8c0 ]
[ nat dnat ip addr_min reg 1 addr_max reg 0 ]
# dnat to ct mark map { 0x00000014 : 1.2.3.4}
__map%d test-ip4 b
__map%d test-ip4 0
element 00000014 : 04030201 0 [end]
ip test-ip4 prerouting
[ ct load mark => reg 1 ]
[ lookup reg 1 set __map%d dreg 1 ]
[ nat dnat ip addr_min reg 1 addr_max reg 0 ]
# dnat to ct mark . ip daddr map { 0x00000014 . 1.1.1.1 : 1.2.3.4}
__map%d test-ip4 b
__map%d test-ip4 0
element 00000014 01010101 : 04030201 0 [end]
ip test-ip4 output
[ ct load mark => reg 1 ]
[ payload load 4b @ network header + 16 => reg 9 ]
[ lookup reg 1 set __map%d dreg 1 ]
[ nat dnat ip addr_min reg 1 addr_max reg 0 ]
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