Configuring MSDP Caching Source-Active State Command or Action Purpose message to the MSDP peer when a new member for a group becomes active. Step 4 access-list access-list-number {deny | permit} protocol source source-wildcard destination destination-wildcard Example: Device(config)#access-list 100 permit ip 171.69.0.0 0.0.255.255 224.2.0.0 0.0.255.255 Creates an IP extended access list, repeating the command as many times as necessary. • For access-list-number, the range is 100 to 199. Enter the same number created in Step 2. • The deny keyword denies access if the conditions are matched. The permit keyword permits access if the conditions are matched.
• For protocol, enter ip as the protocol name. • For source, enter the number of the network or host from which the packet is being sent. • For source-wildcard, enter the wildcard bits in dotted decimal notation to be applied to the source. Place ones in the bit positions that you want to ignore. • For destination, enter the number of the network or host to which the packet is being sent. • For destination-wildcard, enter the wildcard bits in dotted decimal notation to be applied to the destination. Place ones in the bit positions that you want to ignore. Recall that the access list is always terminated by an implicit deny statement for everything. Step 5 end Example:
Device(config)#end Returns to privileged EXEC mode. Step 6 show running-config Example: Device#show running-config Verifies your entries. Step 7 copy running-config startup-config Example: (Optional) Saves your entries in the configuration file. Configuring MSDP 7