-----Original Message-----
>From: Ravikumar Eswaran [mailto:[EMAIL PROTECTED]]
>Sent: Tuesday, March 20, 2001 3:36 AM
>To: [EMAIL PROTECTED]
>Subject: [Sip-implementors] whats the use of "Hide" Header?
>
>
>Hi,
>
> I want to know the use of "Hide" Header. I can understand that it is
used to hide the
>via header field values from subsequent proxies by using some form of
encryption. But whats
>the advantage of hiding it?
There are security issues that may arise by revealing the IP addresses of
your internal devices and users. Attacks, privacy concerns, etc.
In any case, via hiding as specified in rfc2543 has been deprecated. Rather,
via hiding can be accomplished using local mechanisms on the proxy which do
not require standardization. For example, it can simply remove the via
headers and store them on disk, re-constituting them into the response as it
goes by.
-Jonathan R.
---
Jonathan D. Rosenberg 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.cs.columbia.edu/~jdrosen PHONE: (973) 952-5000
http://www.dynamicsoft.com
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