Extensions for Unauthenticated and Unauthorized Devices

draft-ietf-ecrit-unauthenticated-access-01H. Schulzrinne, S. McCann, G. Bajko,

H. Tschofenig, D. Kroeselberg

04/10/23 IETF #77, ECRIT WG 2

Reminder

StartStart

Lower-layer attachLower-layer attachWaiting for ES call initiation

Waiting for ES call initiation

NAANAANASPNASPPhoneBCP PhoneBCP

PhoneBCPPhoneBCPZBPZBP

Credentials for network access available?

yes

no

Emergency NW attach possible?

yes

no

ASP configured?

noyes

Authorized?

no

yes

Open Issue

• In Section 5, step 2, this document says that the ISP informs the calling device about its local ESRP via DHCP. This seems incorrect, not least because there is no DHCP option defined to carry this sort of information. It seems to me that in order to minimize the divergence from the normal procedure, step 2 should have the network providing the client access to location (HELD/DHCP-location) and LoST servers, then connecting to the ESRP.

• --Richard

04/10/23 IETF #77, ECRIT WG 3

Next Steps

• WGLC after updated version.

04/10/23 IETF #77, ECRIT WG 4