01-25-2012 03:40 AM - edited 03-04-2019 03:01 PM
Hello All,
We are running ISP and now a days we have many spam in our network, we want block the SMTP port 25 block on Cisco router 7200.
So we can block the spam in our network .Please advise me for this its urjent issue.
Thanks
Mukesh
01-25-2012 04:15 AM
hi
Use an accesslistvto handle it
Something like this
Conf t
Access-list 150 deny tcp any any eq smtp
Access-list 150 permit ip any any
Then apply it on the interface
Int x
Access-group 150 in ( or out depending n your prefs)
Rgds
Matt
Sent from Cisco Technical Support iPad App
01-26-2012 12:05 AM
Hello Douhanm,
I don't want to block it totally, i need a dynamic rule that will block it from like 12 hours when it detect spam activity.
thanks
01-26-2012 02:16 AM
Hi
I think your best looking at Cisco Ironport anit-spam. I would not use a router for anit-spam whatsoever.
Noel
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