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I'll forward to my network person. He talks Cisco
much better than I.
----- Original Message -----
Sent: Friday, February 25, 2005 6:49
PM
Subject: Re: [Declude.JunkMail] Spammed
on port 2525
Here's what I am using for a mail server located at 192.168.1.1
for this example. IMail is configured to listen on port 587, but to the
outside world it appears as both port 25 and 587. Even though one would
think that you didn't have to NAT 587 to 587, in this case you do because of
the other rules for that IP (or so I was told). I assume that you are
configured differently and that does matter, so you might want to share that
before making the edits yourself.
ip nat inside source static
tcp 192.168.1.1 25 192.168.1.1 25 extendable no-alias
ip nat inside source
static tcp 192.168.1.1 587 192.168.1.1 25 extendable no-alias
ip nat inside
source static tcp 192.168.1.1 587 192.168.1.1 587 extendable no-alias
I
assume that you know how to config term your router. If not, it won't be
straight forward without a crib sheet or experienced help to guide you through
it rather than risk messing it up.
Matt
Scott Fisher
wrote:
I use port 2525 to bypass port 25 blocking for
my employees.
I was just checking my logs and I've been
receiving spam on port 2525
Can anyone share the necessary Cisco IOS commands to let the Cisco
router do port translation?
P.S. IOS isn't my primary language...
--
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MailPure custom filters for Declude JunkMail Pro.
http://www.mailpure.com/software/
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- Re: [Declude.JunkMail] Spammed on port 2525 Scott Fisher
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