1) sys-apps/netplug and net-wireless/wpa_supplicant both set the interface up. When an interface is up, the kernel broadcasts for an ipv6 router although the media is not ready yet (cable not connected, wlan not enabled). When the media gets ready, no more router solicitation messages are sent so the ipv6 address gets available after some minutes, when the router decides to send a router advertisement message again. 2) When disconnecting the cable/wireless, the interface remains up. Existing ipv6 addresses are removed, but the routes remain! This is really bad when you change the media (switching from wireless to cable) because the existing default route is still used. ifconfig eth0 after media disconnect: eth0 Link encap:Ethernet HWaddr 00:02:3F:18:3A:37 inet6 addr: fe80::202:3fff:fe18:3a37/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:632992 errors:107 dropped:209 overruns:107 frame:0 TX packets:1111104 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:220882481 (210.6 Mb) TX bytes:1214945735 (1158.6 Mb) Interrupt:10 Base address:0xe000 ip -6 route show after media disconnect: 2001:5c0:8dd5::/64 dev eth0 proto kernel metric 256 expires 2146773sec mtu 1500 advmss 1440 hoplimit 4294967295 fe80::/64 dev eth0 metric 256 expires 21334315sec mtu 1500 advmss 1440 hoplimit 4294967295 ff00::/8 dev eth0 metric 256 expires 21334315sec mtu 1500 advmss 1440 hoplimit 4294967295 default via fe80::202:44ff:fe0b:a6b8 dev eth0 proto kernel metric 1024 expires 1743sec mtu 1500 advmss 1440 hoplimit 64 ifconfig eth0 down deletes the remaining ipv6 routes of the interface. This problem exists with netplugd as well as with wpa_supplicant. Reproducible: Always Steps to Reproduce: 1. setup radvd on a host 2. enable ipv6 and netplugd/wireless on client 3. plug and unplug cable Actual Results: ipv6 routes still remain when the interface is not down-ed Expected Results: routes are deleted properly
Sounds more like a baselayout bug. You neglected to attach emerge --info, so I don't know which version you're using.
Alright, sorry. Here my emerge --info: Portage 2.1.3_rc5 (default-linux/x86/2007.0/desktop, gcc-4.1.2, glibc-2.5-r3, 2.6.21-suspend2-r6 i686) ================================================================= System uname: 2.6.21-suspend2-r6 i686 Intel(R) Pentium(R) M processor 1500MHz Gentoo Base System release 1.12.10 Timestamp of tree: Tue, 26 Jun 2007 10:00:10 +0000 distcc 2.18.3 i686-pc-linux-gnu (protocols 1 and 2) (default port 3632) [disabled] dev-java/java-config: 1.3.7, 2.0.33-r1 dev-lang/python: 2.4.4-r4 dev-python/pycrypto: 2.0.1-r5 sys-apps/sandbox: 1.2.18.1 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.17 sys-devel/gcc-config: 1.3.16 sys-devel/libtool: 1.5.23b virtual/os-headers: 2.6.21 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-Os -march=pentium-m -mtune=pentium-m -pipe -fomit-frame-pointer -msse2" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/texmf/web2c" CXXFLAGS="-Os -march=pentium-m -mtune=pentium-m -pipe -fomit-frame-pointer -msse2" DISTDIR="/usr/portage/distfiles" FEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans" GENTOO_MIRRORS="http://ftp.belnet.be/mirror/rsync.gentoo.org/gentoo/ ftp://sunsite.informatik.rwth-aachen.de/pub/Linux/gentoo http://linux.rz.ruhr-uni-bochum.de/download/gentoo-mirror/ http://pandemonium.tiscali.de/pub/gentoo/ " LANG="de_DE@euro" LC_ALL="de_DE@euro" LINGUAS="de" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X acpi alsa arts bash-completion bzip2 crypt cups dbus divx dri dv dvd dvdread encode exif ffmpeg hal ipv6 jpeg kde kdehiddenvisibility mmx mp3 nls nptl ogg opengl png quicktime readline real sdl sndfile speex sse sse2 ssl threads truetype udev usb vorbis win32codecs x86 xcomposite xv xvid zlib" CAMERAS="canon" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev synaptics" KERNEL="linux" LINGUAS="de" USERLAND="GNU" VIDEO_CARDS="i810" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
(In reply to comment #0) > 1) sys-apps/netplug and net-wireless/wpa_supplicant both set the interface up. > When an interface is up, the kernel broadcasts for an ipv6 router although the > media is not ready yet (cable not connected, wlan not enabled). When the media > gets ready, no more router solicitation messages are sent so the ipv6 address > gets available after some minutes, when the router decides to send a router > advertisement message again. Not much we can do about this as userland as no way of telling the kernel to broadcast for an IP6 router. > 2) When disconnecting the cable/wireless, the interface remains up. Existing > ipv6 addresses are removed, but the routes remain! This is solved with baselayout-2, so marking as fixed.
