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TP-Link T2500G-10TSTL-SG3210 T2500G-10TSUN V1 CLI Reference Guide - Page 111

ip dhcp snooping information option, ip dhcp snooping information strategy

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13.5 ip dhcp snooping information option Description The ip dhcp snooping information option command is used to enable the Option 82 function of DHCP Snooping. To disable the Option 82 function, please use no ip dhcp snooping information option command. Syntax ip dhcp snooping information option no ip dhcp snooping information option Command Mode Global Configuration Mode Privilege Requirement Only Admin, Operator and Power User level users have access to these commands. Example Enable the Option 82 function of DHCP Snooping: T2500G-10TS(config)# ip dhcp snooping information option 13.6 ip dhcp snooping information strategy Description The ip dhcp snooping information strategy command is used to select the operation for the Option 82 field of the DHCP request packets from the Host. To restore to the default option, please use no ip dhcp snooping information strategy command. Syntax ip dhcp snooping information strategy strategy no ip dhcp snooping information strategy Parameter strategy -- The operations for Option 82 field of the DHCP request packets from the Host, including three types: 95

Section	Page
Preface	17
Chapter 1 Using the CLI	20
1.1 Accessing the CLI	20
1.1.1 Logon by a console port	20
1.1.2 Logon by Telnet	22
1.1.3 Logon by SSH	26
1.2 CLI Command Modes	31
1.3 Privilege Restrictions	34
1.4 Conventions	35
1.4.1 Format Conventions	35
1.4.2 Special Characters	35
1.4.3 Parameter Format	35
Chapter 2 User Interface	36
2.1 enable	36
2.2 enable-admin	36
2.3 service password-encryption	37
2.4 enable password	38
2.5 enable secret	39
2.6 configure	40
2.7 exit	40
2.8 end	41
2.9 show history	41
2.10 clear history	42
Chapter 3 IEEE 802.1Q VLAN Commands	43
3.1 vlan	43
3.2 interface vlan	44
3.3 name	44
3.4 switchport mode	45
3.5 switchport access vlan	46
3.6 switchport trunk allowed vlan	46
3.7 switchport general allowed vlan	47
3.8 switchport pvid	48
3.9 show vlan summary	49
3.10 show vlan brief	49
3.11 show vlan	50
3.12 show interface switchport	50
Chapter 4 MAC-based VLAN Commands	52
4.1 mac-vlan mac-address	52
4.2 mac-vlan	53
4.3 show mac-vlan	53
Chapter 5 Protocol-based VLAN Commands	55
5.1 protocol-vlan template	55
5.2 protocol-vlan vlan	56
5.3 protocol-vlan group	57
5.4 show protocol-vlan template	57
5.5 show protocol-vlan vlan	58
Chapter 6 VLAN-VPN Commands	59
6.1 dot1q-tunnel	59
6.2 dot1q-tunnel tpid	59
6.3 dot1q-tunnel mapping	60
6.4 switchport dot1q-tunnel mapping	61
6.5 switchport dot1q-tunnel mode	62
6.6 show dot1q-tunnel	62
6.7 show dot1q-tunnel mapping	63
6.8 show dot1q-tunnel interface	63
Chapter 7 Voice VLAN Commands	65
7.1 voice vlan	65
7.2 voice vlan aging time	65
7.3 voice vlan priority	66
7.4 voice vlan mac-address	67
7.5 switchport voice vlan mode	68
7.6 switchport voice vlan security	68
7.7 show voice vlan	69
7.8 show voice vlan oui	69
7.9 show voice vlan switchport	70
Chapter 8 L2PT Commands	71
8.1 l2protocol-tunnel	71
8.2 l2protocol-tunnel type	71
8.3 show l2protocol-tunnel global	73
8.4 show l2protocol-tunnel interface	73
Chapter 9 GVRP Commands	75
9.1 gvrp	75
9.2 gvrp (interface)	75
9.3 gvrp registration	76
9.4 gvrp timer	77
9.5 show gvrp interface	78
9.6 show gvrp global	79
Chapter 10 Etherchannel Commands	80
10.1 channel-group	80
10.2 port-channel load-balance	81
10.3 lacp system-priority	82
10.4 lacp port-priority	82
10.5 show etherchannel	83
10.6 show etherchannel load-balance	84
10.7 show lacp	84
10.8 show lacp sys-id	85
Chapter 11 User Management Commands	86
11.1 user name (password)	86
11.2 user name (secret)	87
11.3 user access-control ip-based	88
11.4 user access-control mac-based	89
11.5 user access-control port-based	90
11.6 line	91
11.7 password	92
11.8 login	93
11.9 login local	94
11.10 media-type rj45	94
11.11 telnet	95
11.12 show user account-list	96
11.13 show user configuration	96
11.14 show telnet-status	97
Chapter 12 HTTP and HTTPS Commands	98
12.1 ip http server	98
12.2 ip http max-users	99
12.3 ip http session timeout	99
12.4 ip http secure-server	100
12.5 ip http secure-protocol	101
12.6 ip http secure-ciphersuite	101
12.7 ip http secure-max-users	102
12.8 ip http secure-session timeout	103
12.9 ip http secure-server download certificate	104
12.10 ip http secure-server download key	105
12.11 show ip http configuration	106
12.12 show ip http secure-server	106
Chapter 13 Binding Table Commands	107
13.1 ip source binding	107
13.2 ip source binding index	108
13.3 ip dhcp snooping	109
13.4 ip dhcp snooping global	110
13.5 ip dhcp snooping information option	111
13.6 ip dhcp snooping information strategy	111
13.7 ip dhcp snooping information remote-id	112
13.8 ip dhcp snooping information circuit-id	113
13.9 ip dhcp snooping trust	114
13.10 ip dhcp snooping mac-verify	114
13.11 ip dhcp snooping limit rate	115
13.12 ip dhcp snooping decline	116
13.13 show ip source binding	116
13.14 show ip dhcp snooping information	117
13.15 show ip dhcp snooping interface gigabitEthernet	117
Chapter 14 ARP Inspection Commands	119
14.1 ip arp inspection(global)	119
14.2 ip arp inspection trust	119
14.3 ip arp inspection(interface)	120
14.4 ip arp inspection limit-rate	121
14.5 ip arp inspection recover	122
14.6 show ip arp inspection	122
14.7 show ip arp inspection interface	123
14.8 show ip arp inspection statistics	123
14.9 clear ip arp inspection statistics	124
Chapter 15 DoS Defend Commands	125
15.1 ip dos-prevent	125
15.2 ip dos-prevent type	125
15.3 show ip dos-prevent	126
Chapter 16 IEEE 802.1X Commands	128
16.1 dot1x system-auth-control	128
16.2 dot1x handshake	129
16.3 dot1x auth-method	129
16.4 dot1x accounting	130
16.5 dot1x guest-vlan(global)	131
16.6 dot1x quiet-period	131
16.7 dot1x timeout supplicant-timeout	132
16.8 dot1x max-reauth-req	133
16.9 dot1x	134
16.10 dot1x guest-vlan(interface)	134
16.11 dot1x port-control	135
16.12 dot1x port-method	136
16.13 show dot1x global	137
16.14 show dot1x interface	137
Chapter 17 PPPoE ID-Insertion Commands	139
17.1 pppoe id-insertion(global)	139
17.2 pppoe circuit-id(interface)	140
17.3 pppoe circuit-id type	140
17.4 pppoe remote-id	141
17.5 show pppoe id-insertion global	142
17.6 show pppoe id-insertion interface	142
Chapter 18 System Log Commands	144
18.1 logging buffer	144
18.2 logging file flash	145
18.3 logging file flash frequency	145
18.4 logging file flash level	146
18.5 logging host index	147
18.6 clear logging	148
18.7 show logging local-config	148
18.8 show logging loghost	149
18.9 show logging buffer	149
18.10 show logging flash	150
Chapter 19 SSH Commands	151
19.1 ip ssh server	151
19.2 ip ssh version	151
19.3 ip ssh algorithm	152
19.4 ip ssh timeout	153
19.5 ip ssh max-client	153
19.6 ip ssh download	154
19.7 remove public-key	155
19.8 show ip ssh	155
Chapter 20 MAC Address Commands	157
20.1 mac address-table static	157
20.2 mac address-table aging-time	158
20.3 mac address-table filtering	158
20.4 mac address-table max-mac-count	159
20.5 show mac address-table	160
20.6 clear mac address-table	161
20.7 show mac address-table aging-time	161
20.8 show mac address-table max-mac-count	162
20.9 show mac address-table interface	163
20.10 show mac address-table count	163
20.11 show mac address-table address	164
20.12 show mac address-table vlan	164
Chapter 21 System Configuration Commands	165
21.1 system-time manual	165
21.2 system-time ntp	165
21.3 system-time dst predefined	167
21.4 system-time dst date	168
21.5 system-time dst recurring	169
21.6 hostname	170
21.7 location	170
21.8 contact-info	171
21.9 reset	172
21.10 reboot	172
21.11 copy running-config startup-config	173
21.12 copy startup-config tftp	173
21.13 copy tftp startup-config	174
21.14 boot application	175
21.15 remove backup-image	175
21.16 firmware upgrade	176
21.17 ping	177
21.18 tracert	178
21.19 show system-info	179
21.20 show image-info	179
21.21 show boot	180
21.22 show running-config	180
21.23 show startup-config	181
21.24 show system-time	181
21.25 show system-time dst	182
21.26 show system-time ntp	182
21.27 show cable-diagnostics interface gigabitEthernet	183
Chapter 22 IPv6 Address Configuration Commands	184
22.1 ipv6 enable	184
22.2 ipv6 address autoconfig	184
22.3 ipv6 address link-local	185
22.4 ipv6 address dhcp	186
22.5 ipv6 address ra	186
22.6 ipv6 address eui-64	187
22.7 ipv6 address	188
22.8 show ipv6 interface	189
Chapter 23 Ethernet Configuration Commands	190
23.1 interface gigabitEthernet	190
23.2 interface range gigabitEthernet	190
23.3 description	191
23.4 shutdown	192
23.5 flow-control	193
23.6 duplex	193
23.7 jumbo	194
23.8 speed	195
23.9 storm-control	195
23.10 bandwidth	196
23.11 clear counters	197
23.12 show interface status	197
23.13 show interface counters	198
23.14 show interface configuration	198
23.15 show storm-control	199
23.16 show bandwidth	199
Chapter 24 QoS Commands	201
24.1 qos	201
24.2 qos dscp	202
24.3 qos queue cos-map	202
24.4 qos queue dscp-map	203
24.5 qos queue mode	204
24.6 show qos interface	205
24.7 show qos cos-map	206
24.8 show qos dscp-map	206
24.9 show qos queue mode	207
24.10 show qos status	207
Chapter 25 Port Mirror Commands	209
25.1 monitor session destination interface	209
25.2 monitor session source interface	210
25.3 show monitor session	211
Chapter 26 Port Isolation Commands	212
26.1 port isolation	212
26.2 show port isolation interface	213
Chapter 27 Loopback Detection Commands	214
27.1 loopback-detection(global)	214
27.2 loopback-detection interval	214
27.3 loopback-detection recovery-time	215
27.4 loopback-detection(interface)	216
27.5 loopback-detection config	216
27.6 loopback-detection recover	217
27.7 show loopback-detection global	218
27.8 show loopback-detection interface	218
Chapter 28 ACL Commands	220
28.1 time-range	220
28.2 absolute	220
28.3 periodic	221
28.4 holiday	222
28.5 holiday(global)	223
28.6 access-list create	223
28.7 mac access-list	224
28.8 access-list standard	225
28.9 access-list extended	226
28.10 rule	227
28.11 access-list policy name	228
28.12 access-list policy action	229
28.13 redirect interface	230
28.14 s-condition	230
28.15 s-mirror	231
28.16 qos-remark	232
28.17 access-list bind(interface)	233
28.18 access-list bind(vlan)	233
28.19 show access-list	234
28.20 show access-list policy	234
28.21 show access-list bind	235
Chapter 29 MSTP Commands	236
29.1 spanning-tree(global)	236
29.2 spanning-tree(interface)	236
29.3 spanning-tree common-config	237
29.4 spanning-tree mode	238
29.5 spanning-tree mst configuration	239
29.6 instance	239
29.7 name	240
29.8 revision	241
29.9 spanning-tree mst instance	242
29.10 spanning-tree mst	242
29.11 spanning-tree priority	243
29.12 spanning-tree tc-defend	244
29.13 spanning-tree timer	245
29.14 spanning-tree hold-count	246
29.15 spanning-tree max-hops	246
29.16 spanning-tree bpdufilter	247
29.17 spanning-tree bpduguard	247
29.18 spanning-tree guard loop	248
29.19 spanning-tree guard root	249
29.20 spanning-tree guard tc	249
29.21 spanning-tree mcheck	250
29.22 show spanning-tree active	251
29.23 show spanning-tree bridge	251
29.24 show spanning-tree interface	252
29.25 show spanning-tree interface-security	252
29.26 show spanning-tree mst	253
Chapter 30 DLDP Commands	255
30.1 dldp(global)	255
30.2 dldp interval	255
30.3 dldp shut-mode	256
30.4 dldp reset(global)	257
30.5 dldp(interface)	257
30.6 dldp reset(interface)	258
30.7 show dldp	258
30.8 show dldp interface	259
Chapter 31 IGMP Snooping Commands	260
31.1 ip igmp snooping(global)	260
31.2 ip igmp snooping(interface)	260
31.3 ip igmp snooping report-suppression	261
31.4 ip igmp snooping immediate-leave	262
31.5 ip igmp snooping drop-unknown	262
31.6 ip igmp snooping vlan-config	263
31.7 ip igmp snooping multi-vlan-config	264
31.8 ip igmp snooping filter(global)	266
31.9 ip igmp snooping filter(interface)	266
31.10 ip igmp snooping filter add-id	267
31.11 ip igmp snooping filter maxgroup	268
31.12 ip igmp snooping filter mode	268
31.13 ip igmp snooping querier vlan	269
31.14 ip igmp snooping querier vlan (general query)	270
31.15 ip igmp snooping querier vlan (specific query)	271
31.16 ip igmp snooping authentication	272
31.17 ip igmp snooping accounting	273
31.18 clear ip igmp snooping statistics	273
31.19 show ip igmp snooping	274
31.20 show ip igmp snooping interface	274
31.21 show ip igmp snooping vlan	275
31.22 show ip igmp snooping multi-vlan	275
31.23 show ip igmp snooping groups	276
31.24 show ip igmp snooping querier	277
Chapter 32 MLD Snooping Commands	278
32.1 ipv6 mld snooping	278
32.2 ipv6 mld snooping router-aging-time	278
32.3 ipv6 mld snooping member-aging-time	279
32.4 ipv6 mld snooping report-suppression	280
32.5 ipv6 mld snooping unknown-filter	280
32.6 ipv6 mld snooping last-listener query-inteval	281
32.7 ipv6 mld snooping last-listener query-count	281
32.8 ipv6 mld snooping multicast-vlan	282
32.9 ipv6 mld snooping multicast-vlan vlan-id	283
32.10 ipv6 mld snooping vlan	283
32.11 ipv6 mld snooping vlan router-aging-time	284
32.12 ipv6 mld snooping vlan member-aging-time	285
32.13 ipv6 mld snooping vlan immediate-leave	285
32.14 ipv6 mld snooping vlan mrouter	286
32.15 ipv6 mld snooping vlan static	287
32.16 ipv6 mld snooping querier vlan	287
32.17 ipv6 mld snooping querier vlan max-response-time	288
32.18 ipv6 mld snooping querier vlan query-interval	289
32.19 ipv6 mld snooping querier vlan query-source	289
32.20 ipv6 mld snooping filter(global)	290
32.21 ipv6 mld snooping filter(interface)	291
32.22 ipv6 mld snooping filter-mode	291
32.23 ipv6 mld snooping filter-id	292
32.24 ipv6 mld snooping max-group	293
32.25 clear ipv6 mld snooping statistics	293
32.26 show ipv6 mld snooping	294
32.27 show ipv6 mld snooping vlan	294
32.28 show ipv6 mld snooping static-mcast	295
32.29 show ipv6 mld snooping group	295
32.30 show ipv6 mld snooping filter	296
32.31 show ipv6 mld snooping interface	296
32.32 show ipv6 mld snooping interface filter	297
32.33 show ipv6 mld snooping querier	297
32.34 show ipv6 mld snooping statistics	298
Chapter 33 SNMP Commands	299
33.1 snmp-server	299
33.2 snmp-server view	299
33.3 snmp-server group	300
33.4 snmp-server user	302
33.5 snmp-server community	303
33.6 snmp-server host	304
33.7 snmp-server engineID	306
33.8 snmp-server traps snmp	306
33.9 snmp-server traps link-status	307
33.10 snmp-server traps	308
33.11 snmp-server traps mac	309
33.12 snmp-server traps vlan	310
33.13 rmon history	311
33.14 rmon event	312
33.15 rmon alarm	313
33.16 rmon statistics	314
33.17 show snmp-server	315
33.18 show snmp-server view	316
33.19 show snmp-server group	316
33.20 show snmp-server user	317
33.21 show snmp-server community	317
33.22 show snmp-server host	317
33.23 show snmp-server engineID	318
33.24 show rmon history	318
33.25 show rmon event	319
33.26 show rmon alarm	320
33.27 show rmon statistics	320
Chapter 34 LLDP Commands	322
34.1 lldp	322
34.2 lldp hold-multiplier	322
34.3 lldp timer	323
34.4 lldp receive	324
34.5 lldp transmit	325
34.6 lldp snmp-trap	325
34.7 lldp tlv-select	326
34.8 lldp med-fast-count	327
34.9 lldp med-status	327
34.10 lldp med-tlv-select	328
34.11 lldp med-location	329
34.12 show lldp	330
34.13 show lldp interface	330
34.14 show lldp local-information interface	331
34.15 show lldp neighbor-information interface	331
34.16 show lldp traffic interface	332
Chapter 35 AAA Commands	333
35.1 aaa enable	333
35.2 enable admin password	334
35.3 enable admin secret	335
35.4 tacacas-server host	336
35.5 show tacacs-server	337
35.6 radius-server host	338
35.7 show radius-server	339
35.8 aaa group	340
35.9 server	340
35.10 show aaa group	341
35.11 aaa authentication login	342
35.12 aaa authentication enable	343
35.13 aaa authentication dot1x default	344
35.14 aaa accounting dot1x default	344
35.15 show aaa authentication	345
35.16 show aaa accounting	346
35.17 line console	346
35.18 login authentication(console)	347
35.19 enable authentication(console)	348
35.20 line telnet	348
35.21 login authentication(telnet)	349
35.22 line ssh	350
35.23 login authentication(ssh)	350
35.24 enable authentication(telnet)	351
35.25 enable authentication(ssh)	352
35.26 ip http login authentication	352
35.27 ip http enable authentication	353
35.28 show aaa global	354
Chapter 36 DHCP Relay Commands	355
36.1 ip dhcp relay	355
36.2 ip dhcp relay helper-address	355
36.3 ip dhcp relay information option	356
36.4 ip dhcp relay information strategy	357
36.5 ip dhcp relay information circuit-id	357
36.6 ip dhcp relay information remote-id	358
36.7 show ip dhcp relay	359