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Accesslist on pix 525

shawn.s
Level 1
Level 1

I only want IP addresses on a specific subnet to be able tos end smtp traffic to my email server. I have tried the following access-lists but cannot get traffic to pass.

access-list acl_grp permit tcp host myipaddress host theirsubnet eq smtp and I reversed the order of the addresses. I am wondering if the access-list command does not recognize entire subnets? example: 209.165.201.0 ?

2 Replies 2

shawn.s
Level 1
Level 1

Maybe I wasn't clear enough.. I just want to create an access list that only allows hosts on a specified subnet to pass SMTP traffic to my email server.

MARTY ADKINS
Level 1
Level 1

It handles subnets fine but you have to use that syntax. Instead of "host subnet" you need "subnet subnet-mask". And from what you wrote about the purpose, I think you need to reverse the source/dest, assuming the ACL gets applied to the outside interface.

access-list acl_grp permit tcp theirsubnet subnet-mask gt 1023 host my-email-server eq smtp

HTH,

- Marty

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