
76 Chapter 4 User Notes
NN47923-500
b Enter the authentication information, with either a pre-shared key or an
imported certificate.
c Enter the IP Address assigned to the router WAN port. This should be a
static address, or a dynamic DNS name, and the IP address of the remote
router.
d Select the encryption and authentication algorithms.
e Add an IP policy, by specifying the IP address ranges of the local and
remote hosts that will use the tunnel.
2 Repeat these steps at the other end of the branch.
Note: If VPN Client Termination is used on these sites, the client termination
address range will need to be included in the tunnel policies in order for the
VPN clients to see the other site.
Adding IP telephony to a multi-site network
Scenario 1: A BCM50 in the primary site acting as the gateway for
both sites
1 Ensure that the DHCP Server in the BCM50 is disabled, that the BCM50 is
connected to the router, and both have booted.
2 Add the IP phones to the primary site as per BCM50 installation guide.
3 Create a tunnel to the remote site, as described above.
4 In the remote site, set the S1 and S2 addresses to the IP address of the
BCM50, which is identified in the router DHCP table or in the BCM50. This
is done with a CLI command.
TELNET or SSH to the router. This needs TELNET or SSH enabled on that
router. Select menu 24, select menu 8, and enter the commands:
ip dhcp enif0 server voipserver 1 <BCM50_IP_Address> 7000 1
ip dhcp enif0 server voipserver 2 <BCM50_IP_Address> 7000 1
5 Add the IP phones to the remote site, configured for full DHCP client mode.
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