1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
# udp dport 53 masquerade
ip6 test-ip6 postrouting
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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
[ payload load 1b @ network header + 6 => 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 packets 0 bytes 0 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 ]
[ payload load 1b @ network header + 6 => 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 new,established 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 ]
[ payload load 1b @ network header + 6 => 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 ]
# 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 ]
|
