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Setting up access lists to filter VLSM subnets

cshortreed
Level 1
Level 1

I would like assistance configuring access-lists to disallow traffic from one subnet to another but allow all to access the Internet. I am use 192.168.250.x in VLSM and want to restrict from one to the other.

Current layout:

S0: Internet

E0: 192.168.250.254

VLSM's: 192.168.250.1/29, 192.168.250.9/30, 192.168.250.13/30

I need all subnets to get to the Internet but not be able to see anything on each other's computer

1 Reply 1

wdrootz
Level 4
Level 4

Configuring IP Access Lists covers this in great detail, and reads very well. After reading this document, configuring such a straightforward access list will be a snap.

http://www.cisco.com/warp/public/707/confaccesslists.html