D-Link DGS-3630-52PC Manual - Page 1049
ip ospf network
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Parameters KEY-ID KEY DGS-3630 Layer 3 Stackable Managed Switch CLI Reference Guide Specifies the key identifier. The range is from 1 to 255. Specifies the OSPF MD5 message digest key. The syntax is general string that does not allow spaces. This key can be up to 16 characters long. Default None. Command Mode Interface Configuration Mode. Command Default Level Level: 12. Usage Guideline The authentication for OSPF messages can be either operated in the password mode or MD5 digest mode. This command defines the message digest key used by the MD5 digest mode. In MD5 digest mode, the OSPF message sender will compute a message digest based on the message digest key for the TX message. The message digest and the key ID will be encoded in the packet. The receiver of the packet will verify the digest in the message against the digest computed based on the locally defined message digest key corresponding to the same key ID. The same key ID on the neighboring router should be defined with the same key string. All the neighboring routers on the same interface must use the same key to exchange the OSPF packet with each other. Normally, all neighboring routers on the interface use the same key. With the MD5 digest mode, the user can rollover to a new key without disrupting the current message exchange using the new key. Supposed that a router is currently using an old key to exchange OSPF packets with the neighbor router, as the user configures a new key, the router will start the roll over process by sending duplicated packets for both of the old and the new key. The router will stop sending duplicated packets until it find that all routers on the network have learned the new key. After the rollover process completed, the user should delete the old key to prevent the router from communicating with router using the old key. Example This example shows how to configure a new key 10 with the password "yourpass" on the interface VLAN 1. Switch# configure terminal Switch(config)# interface vlan1 Switch(config-if)# ip ospf authentication message-digest Switch(config-if)# ip ospf message-digest-key 10 md5 yourpass Switch(config-if)# 81-19 ip ospf network This command is used to configure the OSPF network type. Use the no form of this command to revert to the default setting. ip ospf network {broadcast | point-to-point} no ip ospf network 1044
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