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Chapter 3
Cisco CMTS Show Commands
Table 3-54 show interface cable modem Field Descriptions (continued)
Field
method
MAC address
The show interface cable modem command shows similar information to the
Note
command, but adds information about the privacy bits and IP addressing method.
Table 3-15 on page 3-60
field.
In Cisco IOS Release 12.1(12)EC, Release 12.2(8)BC1, and later releases, you can add a timestamp to
Tip
show commands using the exec prompt timestamp command in line configuration mode.
Related Commands
Command
show cable modem
OL-1581-08
Description
Identifies the way that the IP address was assigned:
dhcp = The Cisco CMTS first learned of this IP address
•
through a DHCP packet that assigned the address to this
device. This IP address is therefore assumed to have been
dynamically assigned to the cable modem or CPE device by a
DHCP server. (Per the DOCSIS specifications, DHCP is the
only valid method for cable modems.)
pppoe = (CPE device only) IP addressing for the CPE device
•
was handled by the Point-to-Point Protocol over Ethernet
(PPPoE) protocol.
•
static = (CPE device only) The Cisco CMTS first learned of
this IP address from non-DHCP traffic sent to or from this CPE
device. This IP address is therefore assumed to be statically
assigned to this particular CPE device.
The Cisco CMTS could identify a CPE device as having a
Note
static IP address, if the Cisco CMTS has been rebooted
after the CPE device received its IP address from the DHCP
server.
Identifies the hardware (MAC) address for the CM using this SID.
(see the
show cable modem
Description
Displays information for the registered and unregistered CMs.
Cisco Broadband Cable Command Reference Guide
show interface cable modem
show cable modem
command) lists the possible values for the State
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