4-4
Cisco VG202 and Cisco VG204 Voice Gateways Software Configuration Guide
OL-16191-01
Chapter 4 Configuring Voice
Auto-Configuration on the Cisco VG202 and Cisco VG204 Voice Gateways
Auto-Configuration With a DHCP Server
When the DHCP server is available, the voice gateway sends a DHCP server request to provide the IP
address for the Fast Ethernet 0/0 interface, and the TFTP server’s IP address using the DHCP option 150.
When the DHCP server provides the information, the voice gateway provisions itself with the CCM
configuration using Skinny Call Control Protocol (SCCP). Analog ports which have been pre-configured
on CCM automatically register on CCM as SCCP controlled ports.
To provision the voice gateway with auto-configuration when a DHCP server is available, use the
following commands.
SUMMARY STEPS
1. enable
2. configure terminal
3. interface type slot/port
4. ip address dhcp
5. sccp local interface-type interface-number port port-number
6. ccm-manager sccp local interface-type interface-number
7. ccm-manager sccp
8. voice service voip
9. fax protocol t38 [nse[force]]
10. exit
DETAILED STEPS
Command or Action Purpose
Step 1
enable
Example:
VG# enable
Enters privileged EXEC mode.
Step 2
configure terminal
Example:
VG# configure terminal
Enters global configuration mode. You have entered
global configuration mode when the prompt changes to
VG(config)#.
Step 3
interface
type slot/port
Example:
VG(config)# interface fastethernet 0/0
Enters interface configuration mode and specifies the
type of interface you plan to configure. You have entered
interface configuration mode when the prompt changes
to
VG(config-if)#.
Step 4
ip address dhcp
Example:
VG(config-if)# ip address dhcp
Acquires an IP address on an interface from the Dynamic
Host Configuration Protocol (DHCP).
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