Chapter 5 Managing Traffic
ZyWALL USG 20-2000 User’s Guide
113
5.6.2 Set Up a Firewall Rule
Create a firewall rule to allow the public to send HTTP traffic to IP address 1.1.1.1 in order to access
the HTTP server. If a domain name is registered for IP address 1.1.1.1, users can just go to the
domain name to access the web server.
Click
Configuration > Firewall
>
Add
. Set the
From
field as
WAN
and the
To
field as
DMZ
. Set
the
Destination
to the HTTP server’s DMZ IP address object (
DMZ_HTTP
).
DMZ_HTTP
is the
destination because the ZyWALL applies NAT to traffic before applying the firewall rule. Set the
Access
field to
allow
and the
Service
to
HTTP
, and click
OK
.
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
143
144
145
146
147
148
149
150
