Cisco CP-7911G-CH1 Administration Guide - Page 72

How to Set Up the Network Setting Up the Network DETAILED STEPS Step 1 Command or Action ip dhcp pool pool-name Step 2 Example: Router(config)# ip dhcp pool pool2 host ip-address subnet-mask Step 3 Example: Router(config-dhcp)# host 10.0.0.0 255.255.0.0 option 150 ip ip-address Step 4 Example: Router(config-dhcp)# option 150 ip 10.0.22.1 default-router ip-address Example: Router(config-dhcp)# default-router 10.0.0.1 Step 5 exit Purpose Creates a name for the DHCP server address pool and enters DHCP pool configuration mode. Specifies the IP address that you want the phone to use. Specifies the TFTP server address from which the Cisco IP phone downloads the image configuration file. This needs to be the IP address of Cisco Unified CM. Specifies the router to which the Cisco Unified IP phones are connected directly. • This router should be the Cisco Unified SRST router because this is the default address that is used to obtain SRST service in the event of a WAN outage. As long as the Cisco IP phones have a connection to the Cisco Unified SRST router, the phones are able to get the required network details. Exits DHCP pool configuration mode. Example: Router(config-dhcp)# exit Defining the DHCP Relay Server This task sets up DHCP relay on the LAN interface where the Cisco Unified IP phones are connected and enables the Cisco IOS DHCP server feature to relay requests from DHCP clients (phones) to a DHCP server. For further details about DHCP configuration, see the Cisco IOS DHCP Server document. The Cisco IOS DHCP server feature is enabled on routers by default. If the DHCP server is not enabled on your Cisco Unified SRST router, use the following steps to enable it. SUMMARY STEPS 1. service dhcp 2. interface type number 3. ip helper-address ip-address 4. exit Cisco Unified SCCP and SIP SRST System Administrator Guide 72 OL-13143-04