True true. I thought you meant the field REALM that
our proxies use for authentication. thnx for clearing
that up.
Jose
--- Bob Penfield <[EMAIL PROTECTED]> wrote:
> Jose,
>
> By "realm" I meant that both UAs were in the public
> internet (both had
> globally routable IP addresses) or they were both in
> the same private
> network. If they are not, a SIP ALG proxy would
> likely be required to get
> the SIP session through the NAT between the
> networks.
>
> (-:bob
>
> ----- Original Message -----
> From: "Jose Martinez" <[EMAIL PROTECTED]>
> To: "Bob Penfield" <[EMAIL PROTECTED]>;
> "Varadarajan Srinivasan"
> <[EMAIL PROTECTED]>;
> <[EMAIL PROTECTED]>
> Sent: Wednesday, June 06, 2001 2:00 PM
> Subject: Re: [SIP] Proxy - A basic question
>
>
> > Why do they have to be in the same realm?
> >
> > --- Bob Penfield <[EMAIL PROTECTED]> wrote:
> > >
> > >
> > > ----- Original Message -----
> > > From: "Varadarajan Srinivasan"
> > > <[EMAIL PROTECTED]>
> > > To: <[EMAIL PROTECTED]>
> > > Sent: Wednesday, June 06, 2001 8:08 PM
> > > Subject: [SIP] Proxy - A basic question
> > >
> > >
> > > > Hi,
> > > >
> > > > >From RFC, We are asked to look upon proxy as
> DNS
> > > sort.
> > > >
> > > > Can I assume that UA "MUST" be tagged to a
> proxy?
> > >
> > > The SIP spec does not require that UA to use a
> > > proxy.
> > >
> > > > That is all calls to UA outside its domain
> should
> > > come via proxy?
> > >
> > > If a UAC knows or can determine the IP address
> of
> > > the UAS and the UAC and
> > > UAS are in the same "realm" (i.e. NAT and
> firewall
> > > are not an issue), it
> > > does not have to go thru a proxy.
> > >
> > > The presence of proxies in the network relieve
> UAs
> > > from having to figure out
> > > the IP Address of the other end by providing
> > > location services. It can also
> > > enable lots of other services.
> > >
> > > >
> > > >
> > > >
> > > > Mr. Varadarajan Srinivasan,
> > > > Senior Systems Engineer,
> > > > Wipro Technologies.
> > > >
> > > >
> > > >
> > >
> > >
> > > _______________________________________________
> > > This list is for continuing development of the
> SIP
> > > protocol.
> > > The sip-implementor's list is the place to
> discuss
> > > implementation,
> > > and to receive advice on understanding existing
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> > > To subscribe to it, send mail to
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> >
> >
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