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Firewall Wizards: Re: SOCK5 Proxy and MSN 6.2 IM

Re: SOCK5 Proxy and MSN 6.2 IM

From: syedk <syedk_at_intoto.com>
Date: Mon, 02 Aug 2004 15:03:31 +0530

Hi Ravi,
   I posted similar question sometime back. It seems MSN or ICQ doesn't
use SOCKS for UDP traffic .
But I believe all TCP traffic goes through SOCKS.
BTW file transfer was working fine for me but only audio failed (as it
uses SIP(which is on UDP).

Regards
Syed SK

Ravi Kumar wrote:

> Hi,
> I observed that SOCK5 client support is built in most of
> IM clients such as MSN IM, AOL IM, ICQ etc..
>
> As I understand SOCK5 is used for authenticated firewall
> traversal and also to open holes in firewall to receiving incoming
> connections and any new outgoing connections.
>
> I have installed SOCK5 proxy server on my firewall and tried to
> see if MSN IM works without any ALG (Application specific
> intelligence). Normal chat works through SOCKS5 proxy, but
> the file transfer, Audio/Video conversation does not go through.
> It seems that MSN IM Client, rather than going making connections
> through the SOCKS5 proxy server, is making connections directly.
>
> Does anybody have any observations on whether MSN 6.2 IM support
> of SOCK5 for file transfer/audio/video connections? Is there any thing
> I am missing in my configuration of MSN IM client?
>
> Thanks in advance
> Ravi
>
>
> _______________________________________________
> firewall-wizards mailing list
> firewall-wizards_at_honor.icsalabs.com
> http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
>

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Received on Aug 02 2004

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