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# udp dport 53 masquerade
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq ]
# udp dport 53 masquerade random
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x4 ]
# udp dport 53 masquerade random,persistent
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0xc ]
# udp dport 53 masquerade random,persistent,fully-random
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x1c ]
# udp dport 53 masquerade random,fully-random
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x14 ]
# udp dport 53 masquerade random,fully-random,persistent
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x1c ]
# udp dport 53 masquerade persistent
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x8 ]
# udp dport 53 masquerade persistent,random
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0xc ]
# udp dport 53 masquerade persistent,random,fully-random
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x1c ]
# udp dport 53 masquerade persistent,fully-random
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x18 ]
# udp dport 53 masquerade persistent,fully-random,random
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ masq flags 0x1c ]
# tcp dport { 1,2,3,4,5,6,7,8,101,202,303,1001,2002,3003} masquerade
__set%d test-ip6 3
__set%d test-ip6 0
element 00000100 : 0 [end] element 00000200 : 0 [end] element 00000300 : 0 [end] element 00000400 : 0 [end] element 00000500 : 0 [end] element 00000600 : 0 [end] element 00000700 : 0 [end] element 00000800 : 0 [end] element 00006500 : 0 [end] element 0000ca00 : 0 [end] element 00002f01 : 0 [end] element 0000e903 : 0 [end] element 0000d207 : 0 [end] element 0000bb0b : 0 [end]
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ lookup reg 1 set __set%d ]
[ masq ]
# ip6 daddr fe00::1-fe00::200 udp dport 53 counter masquerade
ip6 test-ip6 postrouting
[ payload load 16b @ network header + 24 => reg 1 ]
[ cmp gte reg 1 0x000000fe 0x00000000 0x00000000 0x01000000 ]
[ cmp lte reg 1 0x000000fe 0x00000000 0x00000000 0x00020000 ]
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000011 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ cmp eq reg 1 0x00003500 ]
[ counter pkts 0 bytes 0 ]
[ masq ]
# iifname "eth0" ct state established,new tcp dport vmap {22 : drop, 222 : drop } masquerade
__map%d test-ip6 b
__map%d test-ip6 0
element 00001600 : 0 [end] element 0000de00 : 0 [end]
ip6 test-ip6 postrouting
[ meta load iifname => reg 1 ]
[ cmp eq reg 1 0x30687465 0x00000000 0x00000000 0x00000000 ]
[ ct load state => reg 1 ]
[ bitwise reg 1 = ( reg 1 & 0x0000000a ) ^ 0x00000000 ]
[ cmp neq reg 1 0x00000000 ]
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ payload load 2b @ transport header + 2 => reg 1 ]
[ lookup reg 1 set __map%d dreg 0 ]
[ masq ]
# meta l4proto 6 masquerade to :1024
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ immediate reg 1 0x00000004 ]
[ masq proto_min reg 1 proto_max reg 0 flags 0x2 ]
# meta l4proto 6 masquerade to :1024-2048
ip6 test-ip6 postrouting
[ meta load l4proto => reg 1 ]
[ cmp eq reg 1 0x00000006 ]
[ immediate reg 1 0x00000004 ]
[ immediate reg 2 0x00000008 ]
[ masq proto_min reg 1 proto_max reg 2 flags 0x2 ]
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