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New Member

Help with CISCO 2921 ISR Configuration

Hello, all, we just bought a 2921 with the following modules:

  1. 4 port clear channel T1/E1 HWIC
  2. SM-ES3G-24-P: EtherSwitch

I read some CISCO documents, and not be able to find what I need. I would prefer all instructions from you are for CLI interface.

This is my first time to deal directly with T1, WIC and 2921 etc. The following is what I get from ATT, IP masked

IP Address Block
IP Address: 20.20.20.136/29

WAN Link Details:
WAN Link IP Address:13.13.13.92
AR Serial INT IP Address:13.13.13.93
CR Serial INT IP Address:13.13.13.94
WAN Link Subnet Mask:255.255.255.252

My questions:

A: how do I configure T1, what does "AR, CR" stands for, and do I need to use both IP addresses?

    What is the WAN Link IP for?

B: We have two T1 lines, so I should plug them both to the WIC, say port 0 and port 1, how to configure them?

C: how do I access the firewall from the command line?

D: I followed T1/E1 HWIC installation guide, and as soon as I add channel-group to the controller t1, the serial interface went down?

I would highly appreciate your help to get me started, either providing some easy to follow instructions, or an example configureation file that is similiar to my setup.

Thanks.

2 REPLIES

Help with CISCO 2921 ISR Configuration

Hi Bin,

CR- Customer router  AR- Access router. Check the below link for config ex:

http://routerdiscussions.com/viewtopic.php?f=8&t=1672

If you have dual T1s, how you plan to use them- bundle (PPP) or production/backup?

If this is your first time, I suggest you to hire a consultant.

hth

MS

New Member

Help with CISCO 2921 ISR Configuration

Thanks.

how do I access the firewall from the command line?

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