Technical Reference for ZyXEL omni.net series
7-3
in hashed form by CHAP. Sometimes CHAP can not be supported by the ISP. You may set
[
S87.2=1
] to use PAP only. If you do not want to do authentication at all, set [
S118.3=1
] to
disable the conversion.
CHAP is described in
RFC1994
and PAP is described in
RFC1334.
The only hash method
supported by CHAP is MD5; MS-CHAP is not supported yet. Presently, authentication conversion
works for clients only.
NOTE:
Disabling authentication may cause problems in Windows
95.
Authentication AT Commands
Description
ATS118.3 = 0
Enable authentication conversion.
Depends on [
S87.2
] (default).
ATS118.3 = 1
Disable authentication conversion.
ATS87.2 = 0
Accept CHAP/PAP/None (default).
ATS87.2 = 1
Accept PAP/None only.
Table 36. Authentication AT Commands
Compression Control Protocol (CCP)
The ISDN channel can be utilized more effectively when using compression. Compression Control
Protocol (CCP) is used by PPP to negotiate compression methods between peers.
CCP starts after the PPP reaches the network phase. Both ends must support the same compression
method to start packet compression. ZyXEL omni.net supports STAC/LZS. Right now STAC/LZS
is only supported with single history check mode 0 (none), 3 (sequence) and 4 (extended). Mode 1
(LCB) and mode 2 (CRC) are not supported due to patent limitations. CCP negotiation is described
in
RFC1962.
STAC/LZS is described in
RFC1974.
The omni.net will monitor the DTE activity. If software compression has been negotiated, the
ISDN TA will automatically disable STAC/LZS compression.
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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
