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Legacy Forums => General Discussion (Legacy) => Topic started by: Daley on February 13, 2003, 06:43:25 PM

Title: SME 5.5 behind Cisco PIX Firewall
Post by: Daley on February 13, 2003, 06:43:25 PM
Hi All,

What are the port numbers in SME 5.5 pop download for the external mail client?

I have currently one SME 5.5 running in Server-Only operation mode which is behind the Cisco PIX firewall, and all my external users are failed to access in  the pop3 download even i have permitted 110/tcp in Cisco PIX.

My question are what exactly the protocols and the relevant ports for the SME pop3 download use to connect, beside the 110/tcp is permitted in firewall system, what other additional port is needed to concern in the SME?

[root@sme /root]# telnet 61.142.2.17 110
Trying 61.142.2.17 ...
Connected to 61.142.2.17 .
Escape character is '^]'.
Connection closed by foreign host.
[root@sme /root]#

Please advise.

Thank you.

Daley
Title: Re: SME 5.5 behind Cisco PIX Firewall
Post by: Mikkel Mandrup on February 14, 2003, 04:12:17 PM
TCP Port 110 should be the only port you need to open..

But when you permitted port TCP port 110, did you then open for all source ports and only restrict destination port ?

/Mikkel
Title: Re: SME 5.5 behind Cisco PIX Firewall
Post by: Daley on February 14, 2003, 07:25:23 PM
Mikkel,

TCP 110 is opened, the pop3 download only works if i permitted all ports in firewall system, but i have no issue with other ports such as like 21, 25, 80 etc

Thanks.
Daley
Title: Re: SME 5.5 behind Cisco PIX Firewall
Post by: Mikkel Mandrup on February 14, 2003, 09:33:53 PM
hmm.. sounds strange - I got no problems with my mail server when I only opens TCP port 110 (but I'm not using an SME mail server yet)....

The only solution I got back then, is to open all ports an then debug the trafic, to find out what port you need to open...

/Mikkel
Title: Re: SME 5.5 behind Cisco PIX Firewall
Post by: Daley on February 17, 2003, 06:36:30 PM
Yeah, i think to open all ports is the way to debug...

Thank you.
Daley
Title: Re: SME 5.5 behind Cisco PIX Firewall
Post by: Mikkel Mandrup on February 17, 2003, 06:39:01 PM
Ok, please post what you find out - I am sure we are many other that would like to know what you find out :)

Regards

Mikkel