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Re: [pcp] draft-chen-pcp-mobile-deployment-04

"Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> Fri, 16 August 2013 10:52 UTC

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From: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>
To: Alper Yegin <alper.yegin@yegin.org>
Thread-Topic: [pcp] draft-chen-pcp-mobile-deployment-04
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Date: Fri, 16 Aug 2013 10:52:52 +0000
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References: <2E25F372-58FF-482F-9210-5526953A08D0@yegin.org> <913383AAA69FF945B8F946018B75898A1902003F@xmb-rcd-x10.cisco.com> <241A5C64-7861-4501-A04E-DF3D99203E18@yegin.org>
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Cc: "pcp@ietf.org" <pcp@ietf.org>
Subject: Re: [pcp] draft-chen-pcp-mobile-deployment-04
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> -----Original Message-----
> From: Alper Yegin [mailto:alper.yegin@yegin.org]
> Sent: Friday, August 16, 2013 2:16 AM
> To: Tirumaleswar Reddy (tireddy)
> Cc: pcp@ietf.org
> Subject: Re: [pcp] draft-chen-pcp-mobile-deployment-04
> 
> 
> On Aug 15, 2013, at 7:08 PM, Tirumaleswar Reddy (tireddy) wrote:
> 
> >> -----Original Message-----
> >> From: Alper Yegin [mailto:alper.yegin@yegin.org]
> >> Sent: Wednesday, August 14, 2013 10:31 PM
> >> To: pcp@ietf.org
> >> Subject: [pcp] draft-chen-pcp-mobile-deployment-04
> >>
> >> Hello,
> >>
> >> Regarding the authentication considerations.... Wouldn't a 3GPP network be
> a
> >> candidate to use PCP w/o authentication ?
> >
> > Can you provide more details why in 3GPP network PCP auth is not required ?
> >
> 
> Both the PCP client and the PCP server are inside the 3GPP network which is
> secured at L2.

Yes, but in various scenarios like PMIPv6 - Mobile Node (MN) will be accessing the PCP server in the Home network (3GPP network) through MAG but local access network (Hot Spot) may not offer L2 security. Hence I think the recommendation should be for PCP server in 3GPP network to support PCP authentication.

--Tiru.

> 
> Alper
> 
> 
> 
> 
> 
> > --Tiru.
> >
> >> We could rely on lower-layer security as a substitute for PCP-layer
> security
> >> (much like what DHCP does).
> >>
> >> Alper
> >>
> >

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