New version of WPADNG

Greetings,



I've submitted a new draft of Web Proxy Automatic Discovery Next Generation
(WPADNG)

https://www.ietf.org/archive/id/draft-joshco-wpadng-01.html



*Changes:*


I've removed the old DNS A TXT, SRV discovery mechanisms



The current discovery mechanisms are DHCP (v4/v6), and DNSSD.



In terms of priority it is DHCP then DNSSD.



For DNSSD the key is new _wpadng._tcp.example.com.  DNS "devolution"
remains, eg: first "dev.example.com" then "example.com"



I've added the use of a URN for the proxy config URI to indicate "there is
no proxy and stop discovery" to prevent discovery of rogue proxies.



*I'm seeking feedback on the following:*



Is the priority of DHCP, DNSSD best?


For DNSSD, is domain devolution common practice?  Eg, eg: first "
dev.example.com" then "example.com".    If not, what are other common
practices to deal with subdomain scenarios?


For DNSSD and DHCPv6, we can include more than just a URL, since we have
key/value pairs in DNSSD and from my read, it looks like there is room to
do the same for DHCPv6.  Is there other information the client should know
that we should add?



Are there other URNs that we should add?



-- 

---
*Josh Co*hen