Dell PowerEdge XL 5133-4 MXL 10/40GbE Switch IO Module FTOS Command Reference - Page 101

Releasing and Renewing DHCP-based IP Addresses, Viewing DHCP Statistics and Lease Information

Page 101 highlights

Releasing and Renewing DHCP-based IP Addresses On an Aggregator configured as a DHCP client, you can release a dynamically-assigned IP address without removing the DHCP client operation on the interface. You can later manually acquire a new IP address from the DHCP server as follows: Task Command Syntax Command Mode Release a dynamically-acquired IP address while retaining the DHCP client configuration on the interface. Acquire a new IP address with renewed lease time from a DHCP server. release dhcp interface type slot/port renew dhcp interface type slot/port EXEC Privilege EXEC Privilege Viewing DHCP Statistics and Lease Information To display DHCP client information, enter the following show commands: Task Display statistics about DHCP client interfaces (Figure 7-3). Clear DHCP client statistics on a specified or on all interfaces. Command Syntax show ip dhcp client statistics interface type slot/port clear ip dhcp client statistics {all | interface type slot/port} Command Mode EXEC Privilege EXEC Privilege Display lease information about the dynamic IP address show ip dhcp lease [interface type currently assigned to a DHCP client interface (Figure 7-4). slot/port] EXEC Privilege Figure 7-3. show ip dhcp client statistics FTOS# show ip dhcp client statistics interface tengigabitethernet 0/0 Interface Name Ma 0/0 Message Received DHCPOFFER 0 DHCPACK 0 DHCPNAK 0 Message Sent DHCPDISCOVER 13 DHCPREQUEST 0 DHCPDECLINE 0 DHCPRELEASE 0 DHCPREBIND 0 DHCPRENEW 0 DHCPINFORM 0 Dynamic Host Configuration Protocol (DHCP) | 87

  • 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

Dynamic Host Configuration Protocol (DHCP)
|
87
Releasing and Renewing DHCP-based IP Addresses
On an Aggregator configured as a DHCP client, you can release a dynamically-assigned IP address
without removing the DHCP client operation on the interface. You can later manually acquire a new IP
address from the DHCP server as follows:
Viewing DHCP Statistics and Lease Information
To display DHCP client information, enter the following
show
commands:
Figure 7-3.
show ip dhcp client statistics
Task
Command Syntax
Command Mode
Release a dynamically-acquired IP address while retaining
the DHCP client configuration on the interface.
release dhcp interface
type
slot
/
port
EXEC Privilege
Acquire a new IP address with renewed lease time from a
DHCP server.
renew dhcp interface
type
slot
/
port
EXEC Privilege
Task
Command Syntax
Command Mode
Display statistics about DHCP client interfaces
(
Figure 7-3
).
show ip dhcp client statistics
interface
type
slot
/
port
EXEC Privilege
Clear DHCP client statistics on a specified or on all
interfaces.
clear ip dhcp client statistics {all |
interface
type
slot
/
port
}
EXEC Privilege
Display lease information about the dynamic IP address
currently assigned to a DHCP client interface (
Figure 7-4
).
show ip dhcp lease [interface
type
slot
/
port
]
EXEC Privilege
FTOS# show ip dhcp client statistics interface tengigabitethernet 0/0
Interface Name
Ma 0/0
Message
Received
DHCPOFFER
0
DHCPACK
0
DHCPNAK
0
Message
Sent
DHCPDISCOVER
13
DHCPREQUEST
0
DHCPDECLINE
0
DHCPRELEASE
0
DHCPREBIND
0
DHCPRENEW
0
DHCPINFORM
0