Dell PowerConnect 6248 User's Guide - Page 541

- None - This is the initial interface state. If you select this option from the drop-down menu on the second screen and click Apply Changes, you are returned to the first screen. - Simple - If you select Simple you are prompted to enter an authentication key. This key is included, in the clear, in the OSPF header of all packets sent on the network. All routers on the network must be configured with the same key. - Encrypt - If you select Encrypt you are prompted to enter both an authentication key and an authentication ID. Encryption uses the MD5 Message-Digest algorithm. All routers on the network must be configured with the same key and ID. • Authentication Key - Enter the OSPF Authentication Key for the specified interface. If you do not choose to use authentication you are not prompted to enter a key. If you choose Simple authentication you cannot use a key of more than 8 characters. If you choose Encrypt the key may be up to 16 characters long. The key value is only displayed if you are logged on with Read/Write privileges, otherwise it is displayed as asterisks. • Authentication ID - Enter the ID to be used for authentication. You are only prompted to enter an ID when you select Encrypt as the authentication type. The ID is a number between 0 and 255, inclusive. Defining a New Virtual Link 1. Open the OSPF Virtual Link Configuration page. 2. Select Create New Virtual Link from the Virtual Link (Area ID - Neighbor Router ID) drop-down menu. 3. Specify the neighbor router ID for the new virtual link. 4. Click Apply Changes. The remaining fields display when the Virtual Link is created. Configuring Routing 541