Bug 432652

Summary:	net-misc/dhcp - dhclient (ipv6) not enabled for ppp devices
Product:	Gentoo Linux	Reporter:	Andreas Steinmetz <ast>
Component:	Current packages	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	UNCONFIRMED ---
Severity:	normal	CC:	kaffeemonster, O01eg, patrakov
Priority:	Normal	Keywords:	PATCH
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugzilla.redhat.com/show_bug.cgi?id=626514
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	dhclient ppp fix patch adapted for dhcp-4.3.1

Description Andreas Steinmetz 2012-08-25 01:20:18 UTC

dhclient (ipv6) doesn't work for ppp devices. At least for me this is neccessary to retrieve stateless IPv6 information (dhclient -S) that is otherwise unavailable (IPv6 name server address list).

Reproducible: Always

Steps to Reproduce:
dhclient -S -d ppp0
Actual Results:  
Bound to *:546
Unsupported device type 512 for "ppp0"


Expected Results:  
Working dhclient.

See e.g. https://bugzilla.redhat.com/show_bug.cgi?id=626514 for details.

Comment 1 Andreas Steinmetz 2012-08-25 01:23:35 UTC

Created attachment 322144 [details, diff]
dhclient ppp fix

The patch fixes dhclient to be usable on ppp devices. It is based on
https://lists.isc.org/pipermail/dhcp-users/attachments/20100426/9deb431f/attachment.bin and enhanced to generate a DUID necessary for dhclient operation.

With the attached patch "dhclient -S ppp0" succeeds for me.

Comment 2 Jan Seiffert 2012-12-02 10:22:16 UTC

I can confirm.

Without this patch all i get is:
Bound to *:546
Unsupported device type 512 for "ppp0"

This is becomming a little bit important.
The biggest german ISP is now starting to roll out native IPv6.

PPP will only handshake a link local addr, everything else
(dns, delegated prefix, etc) needs DHCPv6 over PPP.

from the Fedora Bug report, this seems the way it is supposed to be:
https://datatracker.ietf.org/doc/draft-ietf-v6ops-ipv6-cpe-router/

Comment 3 Alexander E. Patrakov 2014-11-19 19:32:30 UTC

The patch no longer applies

Comment 4 Andreas Steinmetz 2014-11-20 14:44:23 UTC

Created attachment 389858 [details, diff]
patch adapted for dhcp-4.3.1

Comment 5 SpanKY gentoo-dev

2014-11-21 08:07:34 UTC

(In reply to Andreas Steinmetz from comment #1)

can you post a link to the dhcp-users mailing that attachment came from ?

Comment 6 Andreas Steinmetz 2014-11-21 11:28:36 UTC

https://lists.isc.org/pipermail/dhcp-users/2010-April/011624.html