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Chapter 6
Cable CPE Commands
Table 6-28 show dhcp lease Field Descriptions (continued)
Field
DHCP Lease server
state
DHCP transaction id
Lease
Renewal
Rebind
Temp default-gateway
addr
Next timer fires after
Retry count
Client-ID
The following example shows typical output for the show dhcp server command:
Router# show dhcp server
DHCP server: ANY (255.255.255.255)
Leases:
Offers:
Declines: 0
TFTP Server Name: SOHOSERVER
TIME0: 1.2.0.250,
Subnet: 255.255.255.0
Router#
Table 6-29
Table 6-29 show dhcp server Field Descriptions
Field
DHCP server
Leases
Offers
OL-1581-07
Description
IP address of the DHCP server that assigned an IP address to this client.
Current state of this client (the cable interface). Possible states are Bound,
Renew, or Rebinding. For descriptions of these states, see RFC 2131.
Unique number established by the router before the first request message is
sent to the DHCP server. The same transaction ID is used as long as the
lease keeps getting renewed and is valid. If a new "discover" message is
sent, a new transaction ID is used.
Time (in seconds) for which the leased IP address is valid; the duration of
the lease.
Time interval (in seconds) from address assignment until the client
transitions to the renewing state. When the renewal (T1) time expires, the
client sends a unicast dhcprequest message to the server to extends its lease.
The default value of this timer is 0.5 times the duration of the lease.
Time interval (in seconds) from address assignment until the client
transitions to the rebinding state and sends a broadcast dhcprequest message
to any DHCP server to extends its lease. The default value of this timer (T2)
is 0.875 times the duration of the lease.
IP address of the router closest to this client on the network.
Time in hours, minutes, and seconds until the next timer expires.
Number of times the client has sent any message to the DHCP server—most
likely a request message to extend its lease. When the lease is renewed, the
Retry count is reset to 0.
MAC address (with optional media type code) that uniquely identifies the
client on the subnet for binding lookups.
1
1
Requests: 2
Releases: 0
TIME1: 0.0.0.0
describes the fields shown in the display.
Description
MAC address used by the DHCP server.
Number of current leased IP addresses.
Number of offers for an IP address sent to a proxy client from the server.
Acks: 1
Naks: 0
Bad:
0
Cisco Broadband Cable Command Reference Guide
show dhcp
6-163
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