Problem solve Get help with specific problems with your technologies, process and projects.

How do I configure an ISDN connection on my Cisco router for Internet connection?

How do I configure an ISDN connection on my Cisco router for Internet connection? What information do I need to know from my ISDN provider? Could you give me a detailed configuration?
From your service provider, you need to get the switch-type, ISDN number, IP address, subnet mask and default gateway for your router. Also ask them if you need to configure the static route on your router.

A generic BRI configuration is detailed below. But use it with caution until you understand each of the comman...


IP address negotiated (can give the static one also)
encapsulation PPP
ISDN switch-type basic-net3 (check with ISP)
no CDP enable
encapsulation PPP
dialer remote-name ISP
dialer idle-timeout 180
dialer string 1234 (check the string)
PPP authentication chap pap calling
PPP multilink

This was last published in March 2005

Dig Deeper on Network Hardware

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.