Date: Sat, 5 Sep 2009 13:21:22 GMT From: Alexander Yerenkow <yerenkow@gmail.com> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/138547: dhcp wrong behaviour with multiple networks Message-ID: <200909051321.n85DLMHS057546@www.freebsd.org> Resent-Message-ID: <200909051330.n85DU6J5082944@freefall.freebsd.org>
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>Number: 138547 >Category: misc >Synopsis: dhcp wrong behaviour with multiple networks >Confidential: no >Severity: non-critical >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sat Sep 05 13:30:06 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Alexander Yerenkow >Release: 7.2 >Organization: >Environment: FreeBSD pcbsd 7.2-STABLE FreeBSD 7.2-STABLE #6: Mon Jun 15 19:18:56 EDT 2009 root@build7x32.pcbsd.org:/usr/obj/pcbsd-build72/cvs/7.2-src/sys/PCBSD i386 >Description: I have network, for example wlan0. It takes all info by DHCP, gateway and DNS too. 1. If I want to use my own DNS,there is no way to do it, any changes to /etc/resolv.conf are overwrited, even if the auto-discovered dns address leaved untouched there. 2. If I have other network which I need to use (for example, gprs via bluetooth), it connect OK. But DNS probably can be overridden by any other interface with DHCP - not good. 3. If I disconnect my gprs/ppp, I get "no route to host", for any ip. I had a gateway for wlan0, I connected with gprs (tun0), it simply overriden my gateway, not stored any info about which default gate was earlier, and after disconnect I got broken route table. I'd propose a little smartr DHCP, which will respect other DNSes, specified manually or get from other DHCP interfaces. I'd propose additional checks during connect/disconnect interfaces, to have always working route table, no matter of user actions. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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