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Date: Fri, 06 Aug 2010 01:36:42 +0530
From: ashish@FreeBSD.org (Ashish SHUKLA)
Sender: Ashish SHUKLA <wahjava@gmail.com>
To: "Guojun Jin" <gjin@ubicom.com>
Cc: <bug-followup@FreeBSD.org>,  questions@freebsd.org
In-Reply-To: <CB2DD11991B27C4F99935E6229450D3203950C38@STORK.scenix.com>
	(Guojun Jin's message of "Thu, 5 Aug 2010 11:17:21 -0700")
Subject: Re: Ifconfig (DHCP?) configures two IPs in one IF
References: <CB2DD11991B27C4F99935E6229450D3203950C38@STORK.scenix.com>

>Number:         149344
>Category:       kern
>Synopsis:       Re: ifconfig (DHCP?) configures two IPs in one IF
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 05 20:10:05 UTC 2010
>Closed-Date:    Fri Aug 06 15:03:54 UTC 2010
>Last-Modified:  Fri Aug 06 15:03:54 UTC 2010
>Originator:     
>Release:        
>Organization:
>Environment:
>Description:
 --=-=-=
 Content-Type: text/plain; charset=utf-8
 Content-Transfer-Encoding: quoted-printable
 
 Guojun Jin writes:
 
 > This problem comes  in 8.1-R. I have seen it before and  thought I filed =
 a report but cannot find it.
 > I found one (bin/21292) for ifconfig, but it was for two NICs with a same=
  IP. Now is a reversed case
 > One NIC has two IPs.
 
 > Here is the description:
 
 > Due to DHCP server down, I manually configured rl0 to 192.168.0.10 for te=
 mporarily use.
 > In the middle of working, DHCP came back and assigned  another IP on the =
 rl0, now NIC is down
 > due to two conflict IP addresses.
 
 > rl0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 15=
 00
 >         options=3D8<VLAN_MTU>
 >         ether 00:40:f4:d1:23:9a
 >         inet 192.168.0.10 netmask 0xffffff00 broadcast 192.168.0.255
 >         inet 10.10.50.126 netmask 0xffffff00 broadcast 10.10.50.255
 >         media: Ethernet autoselect (100baseTX <full-duplex>)
 >         status: active
 > plip0: flags=3D8810<POINTOPOINT,SIMPLEX,MULTICAST> metric 0 mtu 1500
 
 
 > I tried unplumb/delete rl0, but if does not  work.
 > Before the bug can be fixed, is any way to fix the IP without rebooting t=
 he machine?
 
 # ifconfig rl0 -alias 192.168.0.10
 
 Above will cause 192.168.0.10 to be removed from the interface. For details,
 see ifconfig(1).
 
 HTH
 =2D-=20
 Ashish SHUKLA      | GPG: F682 CDCC 39DC 0FEA E116  20B6 C746 CFA9 E74F A4B0
 freebsd.org!ashish | http://people.freebsd.org/~ashish/
 
 =E2=80=9CFew false ideas have more firmly gripped the minds of so many
 intelligent men than the one that, if they just tried, they could
 invent a cipher that no one could break.=E2=80=9D (David Kahn, "The
 Codebreakers", 1967)
 
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 --=-=-=--
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: linimon 
State-Changed-When: Fri Aug 6 15:01:43 UTC 2010 
State-Changed-Why:  
Misfiled followup to kern/149340; content migrated. 


Responsible-Changed-From-To: gnats-admin->freebsd-bugs 
Responsible-Changed-By: linimon 
Responsible-Changed-When: Fri Aug 6 15:01:43 UTC 2010 
Responsible-Changed-Why:  

http://www.freebsd.org/cgi/query-pr.cgi?pr=149344 
>Unformatted:
