Cisco IE 4000, Software Configuration Manual

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Configuring MSDP
Configuring MSDP
DETAILED STEPS
To return to the default setting (no SA state is created), use the no ip msdp cache-sa-state global configuration
command.
EXAMPLE
This example shows how to enable the cache state for all sources in 171.69.0.0/16 sending to groups 224.2.0.0/16:
Switch(config)# ip msdp cache-sa-state 100
Switch(config)# access-list 100 permit ip 171.69.0.0 0.0.255.255 224.2.0.0 0.0.255.255
Table 0-2
Command Purpose
1. configure terminal Enter global configuration mode.
2. ip msdp cache-sa-state [ list
access-list-number ]
Enable the caching of source/group pairs (create an SA state).
Those pairs that pass the access list are cached.
For list access-list-number , the range is 100 to 199.
3. access-list access-list-number
{ deny | permit } protocol source
source-wildcard destination
destination-wildcard
Create 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.
4. end Return to privileged EXEC mode.
5. show running-config Verify your entries.
6. copy running-config
startup-config (Optional) Save your entries in the configuration file.