DHCP for Cisco IP Phones

Published on June 2016 | Categories: Documents | Downloads: 44 | Comments: 0 | Views: 237
of 2
Download PDF   Embed   Report

Comments

Content

DHCP for Cisco IP Phones
Written by David Bombal When a Cisco IP phone boots up, it requires an IP address to function. The IP address can be manually configured on the phone, but that is a lot of work if you have 240 Cisco IP Phones! Rather than manual configuration, it is a lot easier to set up a DHCP server on the Cisco Unified Communications Manager router (CME router). To configure DHCP, do the following: Router>enable Router#configure terminal Router(config)#ip dhcp excluded-address 10.1.1.1 10.1.1.10 !Specify a range of addresses that will not be allocated to IP phones. The exclusion range is normally created to set aside addresses for servers or other devices that are going to get static IP addresses. Router(config)#ip dhcp pool phones !This creates a dhcp pool with the name "phones" Router(dhcp-config)#network 10.1.1.0 255.255.255.0 !Configure the subnet the phones are on with the mask. Phones will be allocated IP addresses in this range Router(dhcp-config)#default-router 10.1.1.1 !Specify a default gateway for the phones. This is the CME router. Router(dhcp-config)#option 150 ip 10.1.1.1 !This is very important - specify the TFTP server the phones should get their configuration from. This is the CME router. Full configuration is therefore: ip dhcp excluded-address 10.1.1.1 10.1.1.10 ! ip dhcp pool phones network 10.1.1.0 255.255.255.0 default-router 10.1.1.1 option 150 ip 10.1.1.1 You will still need to set up the switch with the relevant VLANs and the router for intervlan routing. I will cover this configuration in another article. To your success! David Bombal Will Raglin - echo heard on far end |216.43.0.5 |2009-01-05 21:20:26

Hello, I am troubletroubleshooting an intermittent echo issue. We can never get PCM captures becuase it does not last more than 20/50 seconds. Any Ideas on how we may locate the source. I realize that if the near -end is hearing the echo, then the source is pbobably loated on the other side - ie the PSTN side. any command sor debugs that I may wish to see to fix the echo? Can the cisco 2430 series cancle echo that is originated from the other side.

Sponsor Documents

Or use your account on DocShare.tips

Hide

Forgot your password?

Or register your new account on DocShare.tips

Hide

Lost your password? Please enter your email address. You will receive a link to create a new password.

Back to log-in

Close