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trouble with WebVPN IMAPS proxy on vpn3k

I'm finding it behaves very oddly and has a limited range of clients it

works with, but it's hard to see exactly what's going on because

there's limited debugging available on the box and, well, it's

encrypted. Thunderbird works OK, and I got a good IMAP transcript out

of it, but repeating the same commands with other clients and via

direct connection to the proxy doesn't behave as expected. Here's what

the T-bird log says:

NA:CreateNewLineFromSocket: * OK IMAP4 1.0 server ready^M

NA:SendData: 1 capability^M

-1260471376[9ac5580]: ReadNextLine [stream=96212d0 nb=41 needmore=0]

NA:CreateNewLineFromSocket: * CAPABILITY IMAP4 IMAP4rev1 AUTH=LOGIN^M

-1260471376[9ac5580]: ReadNextLine [stream=96212d0 nb=16 needmore=0]

NA:CreateNewLineFromSocket: 1 OK Completed^M

but here's what happens when I connect with 'openssl s_client -connect

63.209.29.10:993 ' (and with the '-crlf' option which i thought might

help, but doesn't)

* OK IMAP4 1.0 server ready

001 capability

* BAD Argument

read:errno=0

(and the concentrator closes the connection)

This is the same thing that the clients which don't work see. So what's

the difference between the working ones and non-working ones? The same

clients (and s_client) connection directly to the IMAP servers works

fine, so there's definitely something weird going on the proxy.

The only log message emitted here is

06/16/2006 10:27:54.090 SEV=5 EMAILPROXY/47 RPT=3401 x.y.zz.y IMAPS:

Session close.

06/16/2006 10:27:54.090 SEV=4 EMAILPROXY/11 RPT=46 Receive on invalid

connection 0x4.

Any thoughts on what is going wrong here?

1 REPLY
Bronze

Re: trouble with WebVPN IMAPS proxy on vpn3k

Does the traffic pass through correctly?

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