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Cisco uBR924 Software Configuration Guide
OL-0337-05 (8/2002)
Chapter 4 Voice over IP Configurations
SGCP Configuration
!
!
interface Ethernet0
ip address 24.1.0.1 255.255.0.0
no ip directed-broadcast
no ip mroute-cache
!
interface cable-modem0
ip address dhcp
no ip directed-broadcast
no ip mroute-cache
no keepalive
cable-modem downstream saved channel 477000000 56
no cable-modem compliant bridge
h323-gateway voip interface
h323-gateway voip id gatekeeper3620 ipaddr 10.1.70.50 1719
h323-gateway voip h323-id uBR924
h323-gateway voip tech-prefix 1#
!
router rip
version 2
network 10.0.0.0
network 24.0.0.0
!
ip classless
no ip http server
no service finger
!
!
line con 0
transport input none
line vty 0 4
!
end
Note The above configuration assumes that the DHCP server assigns an IP address to the cable interface that
is in the class A private network (10.0.0.0).
SGCP Configuration
When using Cisco IOS Release 12.0(7)T or higher and a software image that supports voice, the
Cisco uBR924 router can use the SGCP protocol for routing voice calls. This transfers the dial mapping
to an external call agent, so that the VoIP gateways do not have to be individually configured with the
dial mappings.
Note The Cisco uBR924 router can use SGCP in either DOCSIS-bridging mode or routing mode.
You must do the following to configure the Cisco uBR924 router for a dynamic mapping configuration:
• Enable SGCP operation on the Cisco uBR924 router.
• Specify the SGCP call agent’s IP address.
• Configure the local dial-peers to be SCGP applications.
• Optionally enable the sending of SNMP traps for SGCP.