Might add that a standard 4000 can't run the 12.1T train but can run the
12.1 mainline. You'll need a 4500 or 4700 to get the T train features.
Brian Dennis
CCIE #2210 (R&S)(ISP/Dial)
CCSI #98640
-----Original Message-----
From: Brian Dennis [mailto:[EMAIL PROTECTED]]
Sent: Saturday, April 21, 2001 4:00 PM
To: Tim Roberts; [EMAIL PROTECTED]
Subject: RE: Cisco 4000 behind a cable modem [7:1498]
Tim,
You could use "ip address dhcp" on your Ethernet interface connected to the
cable modem. It's a 12.1(2)T feature.
Access_Server(config-if)#ip address ?
A.B.C.D IP address
dhcp IP Address negotiated via DHCP
You'll need to set up NAT if you're only getting one IP address to use. Also
they may have the cable modem configured to only talk to one particular MAC
address. If so just change the MAC address on the Ethernet interface
connected to the cable modem to same as your PC's NIC.
Brian Dennis
CCIE #2210 (R&S)(ISP/Dial)
CCSI #98640
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Tim Roberts
Sent: Saturday, April 21, 2001 2:32 PM
To: [EMAIL PROTECTED]
Subject: Cisco 4000 behind a cable modem [7:1498]
I just had cable internet access installed. I want to put a 4000 (with a
6-port ethernet module) between the cable modem and my network. The cable
service only does dynamic addressing at this point. Every few weeks, I will
get a new IP address. The IP address is grabbed by the PC not by the cable
modem. So in order to put the 4000 between the cable box and my network, I
will need one of the ethernet ports to grab an IP from the DHCP server. I
cannot remember if there is a way to make an ethernet port do this. Can
someone help me out with this or recommend another way to perform this task.
Thanks
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