Prestige 334 User’s Guide
Chapter 6 WAN Screens
80
Network Address
Translation
Network Address Translation (NAT) allows the translation of an Internet
protocol address used within one network (for example a private IP address
used in a local network) to a different IP address known within another network
(for example a public IP address used on the Internet).
Choose
None
to disable NAT
.
Choose
SUA Only
if you have a single public IP address. SUA (Single User
Account) is a subset of NAT that supports two types of mapping:
Many-to-One
and
Server
.
Choose
Full Feature
if you have multiple public IP addresses.
Full Feature
mapping types include:
One-to-One
,
Many-to-One
(SUA/PAT),
Many-to-
Many Overload
,
Many- One-to-One
and
Server
. When you select
Full
Feature
you must configure at least one address mapping set!
For more information about NAT refer to the
NAT
chapter in this
User's Guide
.
Metric (PPPoE and
PPTP only)
This field sets this route's priority among the routes the Prestige uses.
The metric represents the "cost of transmission". A router determines the best
route for transmission by choosing a path with the lowest "cost". RIP routing
uses hop count as the measurement of cost, with a minimum of "1" for directly
connected networks. The number must be between "1" and "15"; a number
greater than "15" means the link is down. The smaller the number, the lower
the "cost".
Private (PPPoE and
PPTP only)
This parameter determines if the Prestige will include the route to this remote
node in its RIP broadcasts. If set to Yes, this route is kept private and not
included in RIP broadcast. If No, the route to this remote node will be
propagated to other hosts through RIP broadcasts.
RIP Direction
RIP (Routing Information Protocol) allows a router to exchange routing
information with other routers. The
RIP Direction
field controls the sending
and receiving of RIP packets.
Choose
Both
,
None
,
In Only
or
Out Only
.
When set to
Both
or
Out Only
, the Prestige will broadcast its routing table
periodically.
When set to
Both
or
In Only
, the Prestige will incorporate RIP information that
it receives.
When set to
None
, the Prestige will not send any RIP packets and will ignore
any RIP packets received.
By default,
RIP Direction
is set to
Both
.
RIP Version
The
RIP Version
field controls the format and the broadcasting method of the
RIP packets that the Prestige sends (it recognizes both formats when
receiving).
Choose
RIP-1
,
RIP-2B
or
RIP-2M
.
RIP-1
is universally supported; but
RIP-2
carries more information. RIP-1 is
probably adequate for most networks, unless you have an unusual network
topology. Both
RIP-2B
and
RIP-2M
sends the routing data in RIP-2 format; the
difference being that RIP-2B uses subnet broadcasting while RIP-2M uses
multicasting. Multicasting can reduce the load on non-router machines since
they generally do not listen to the RIP multicast address and so will not receive
the RIP packets. However, if one router uses multicasting, then all routers on
your network must use multicasting, also. By default, the
RIP Version
field is
set to
RIP-1
.
Table 19
WAN: IP
LABEL
DESCRIPTION
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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
