Troubleshooting Ip Routing Policy - 3Com 3032 Configuration Manual

3com 3032: user guide

Hide thumbs Also See for 3032:

Command reference manual (101 pages)

Installation manual (50 pages)

Supplementary manual (31 pages)

Table of Contents

Troubleshooting IP

Routing Policy

Figure 159 Networking diagram of filtering the distributed routing information

Campus network A

1 Configure ip-prefix

[Router]ip ip-prefix p1 permit 192.1.1.0/24

2 Configure RIP protocol

[Router-rip]network 192.1.0.0

[Router-rip]network 202.1.1.0

[Router-rip]filter-policy ip-prefix p1 export

Routing information cannot be filtered when the routing protocol is in

normal operation

Check the following:

At least one node in the routing policy should be in permit matching mode.

When a routing policy is used to filter routing information or a specific routing

information does not pass the filtering of a node, the routing information is

considered not passing the filtering of this routing policy. When all nodes of the

routing policy are in deny mode, no routing information will pass the filtering

of this routing policy.

At least one item in the prefix-list should be in permit matching mode. The list

items in deny mode can be defined to fast filtering routing information that

does not meet the conditions. But if all list items are in deny mode, no route

will pass the filtering of this prefix-list. Define a permit 0.0.0.0/0 list item after

multiple items are defined in deny modes, so that all other routes will pass the

When an ACL is quoted for filtering routing information and ACL

definition is modified, the route strategy is not updated.

In this case, reconfigure by quoting the strategy and rule of this ACL to inform the

protocol of the ACL change. If other filters are quoted, this operation is not

necessary and the protocols are informed of the change of the router.