Bug 218184

Summary:	net-misc/dhcp-3.1.0 - dhclient assigns IP for unconnected devices
Product:	Gentoo Linux	Reporter:	Sebastian Roschke <s.roschke>
Component:	[OLD] Unspecified	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	RESOLVED TEST-REQUEST
Severity:	normal	CC:	mmokrejs
Priority:	High
Version:	unspecified
Hardware:	x86
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Sebastian Roschke 2008-04-17 22:32:22 UTC

My dhclient software assigns an IP address for my unconnected device, if I can access the network with another device. Example: connected to WLAN and executing "dhclient" (without parameters) my WLAN device (eth1) gets an IP. After some minutes also the ethernet device (eth0) gets an IP and the routes are adjusted in a false way. (same problem vice-versa)

The effect is that I can't access the internet as routing table is messed up. Manual correcting of the routing table is possible. 

A simple workaround is the execution of dhclient with device parameter; e.g. "dhclient eth1". 

Reproducible: Always

Steps to Reproduce:
1.connect to LAN
2.call dhclient - get IP
3.wait - IP assigned to WLAN device and routes are rearranged (default gw is added)

Actual Results:  
Connection to internet is not possible, as routes are wrong and no connection with unconnected interface is possible.

Expected Results:  
only assign an IP for the connected device, as the other device could not receive any DHCP packets.

Comment 1 Robin Johnson archtester

2010-10-15 05:15:44 UTC

Please retest w/ 3.1.3_p1.