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User Guide V
2
IU 4300T Converged Network Appliance
3 - 30
Enter a VoIP Subnet Route
1. Select System.
2. Select System Overview.
3. Select VoIP Subnet Routing.
4. Enter the IP Network (e.g. 10.10.12.0).
This is the IP address of the remote subnet containing the voice devices.
5. Enter the Netmask (e.g. 255.255.255.0).
This is the mask of the IP address of the subnet containing the voice
devices.
6. Enter the Gateway (e.g. 10.10.10.2).
This is the IP address of the intermediate router that knows the return path
to the remote subnet from the 4300T.
7. Press Submit.
Perform steps 1 through 7 for each remote subnet containing the voice devices.
Delete a VoIP Subnet Route
1. Select System.
Note
VoIP Subnet Routing is separate and independent from static data routes (see
Static IP routing). VoIP subnet routes must be configured for each LAN subnet that
contains devices making use of the 4300T’s Application Layer Gateway (ALG).
These entries tell the ALG that the identified subnet is allowed to make use of its
services and what router the ALG should use to reach that subnet.
Note
The 4300T is limited to a total of 20 different VoIP subnets.