Multiple gateways on the same network

Last Updated : May 04, 2023 |
Prolog information
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This configuration includes two gateway routers and two call servers connected to the call server network. In this configuration, only the second gateway can route calls to the second call server.
Figure: Multiple gateways on the same network

Configuration details

  • Interfaces and purposes: Only one Avaya SBC interface connects to both, the call server and ITSP networks. Because the call server network has multiple gateway routers , one of the Avaya SBC IP addresses on that network provides call routing capabilities to call server B.
  • Surrounding networking equipment: The next-hop router supports three gateway IP addresses and one VLAN on the same physical port. Two gateway IP addresses are on the call server network, and one is on the ITSP network. The 10.1.1.1 gateway address is the default gateway on the call server network. Additionally, Avaya SBC uses the 10.1.1.254 gateway to reach call server B, as the default gateway in this example is unable to reach the network.
  • Avaya SBC Network Interfaces: The configuration of the call server and ITSP network interfaces is the same as in the earlier scenarios.
  • Networks connected to Avaya SBC: The ITSP network configuration is the same as in the earlier examples. For each attached network, define a default gateway router. Each Avaya SBC IP address on the network can override the default gateway IP address, if necessary. For example, Avaya SBC uses 10.1.1.254 as the next-hop router instead of 10.1.1.1.