Administration of the Avaya G350 Media Gateway - Avaya Support

Configuring the routerPoison-reverse updates explicitly indicate that a network or subnet is unreachable.Poison-reverse updates are sent to defeat large routing loops. Use the ip rippoison-reverse command to enable split-horizon with poison-reverse on an interface. Usethe no form of this command to disable the poison-reverse mechanism.RIP distribution access listsRIP distribution access lists consist of rules that specify how a router distributes and acceptsRIP routing information from other routers. Before sending an update, the router consults anaccess list to determine if it should include specific routes in the update. When receiving anupdate, the router first checks a set of rules which apply to incoming updates to determine if itshould insert those routes into its routing table. You can assign the rules per interface and perdirection.Up to 99 RIP distribution access lists can be configured on the Avaya G350 Media Gateway.For example: To configure RIP distribution access list number 10 permitting distribution andlearning of network 10.10.0.0:1. Enter the command: ip distribution access-list 10 1 permit 10.10.0.00.0.255.255The default action of the access list is deny and can be changed using theip distribution access-default-action command.Note:Note:Whenever at least one permit rule exists, distributing and learning of all theremaining networks is denied, unless specifically permitted by another rule.2. Apply the distribution list created in Step 1 by performing the following procedure within therouter rip context:- Enter the distribution-list 10 in command to apply list number 10 created inStep 1 on all updates received on all interfaces.- Enter the distribution-list 10 in FastEthernet 6/1 command to applyAccess List 10 on updates received on interface ‘FastEthernet 6/1’.- Enter the distribution-list 10 out command to apply Access List 10 to alladvertised updates.- Enter the distribution-list 10 out ospf command to apply Access List 10 to alladvertised updates that were learned from OSPF (redistributed from OSPF into RIP).If no distribution access list is defined, learning and advertising is allowed for all of the routinginformation. This is the default.192 Administration of the Avaya G350 Media Gateway