Package: network-manager Version: 1.0.0-2 Severity: normal In order to preserve SSH sessions when moving from wired to wireless, I have the same IP address set on both interfaces. (I don't believe this affects this bug; however, I thought I'd mention it.) However, my wireless access can be significantly less reliable than my wired access, so I want to prefer wired when possible.
For the default IPv4 route (0.0.0.0/0), this works out fine, as the metric for eth0 is lower than for wlan0. However, for the local network, network-manager sets the same metric for eth0 and wlan0, which results in traffic going over wlan0. This causes notable dropouts when the wireless reconnects, which it does very frequently. From my home machine, although the behavior is identical with the sid version on my work machine: vauxhall ok % route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 0.0.0.0 172.16.0.1 0.0.0.0 UG 100 0 0 eth0 0.0.0.0 172.16.0.1 0.0.0.0 UG 600 0 0 wlan0 172.16.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 172.16.0.0 0.0.0.0 255.255.0.0 U 0 0 0 wlan0 172.16.0.0 0.0.0.0 255.255.0.0 U 100 0 0 eth0 In the sid version, I don't see the second eth0 entry for 172.16.0.0, only the two identical ones with metric 0. I expect that eth0 should have a lower metric than wlan0, as network-manager's (correct) presumption is that wired is better than wireless. -- System Information: Debian Release: 8.0 APT prefers unstable APT policy: (500, 'unstable'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.19.0-trunk-amd64 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages network-manager depends on: ii adduser 3.113+nmu3 ii dbus 1.8.16-1 ii init-system-helpers 1.22 ii isc-dhcp-client 4.3.1-6 ii libbluetooth3 5.23-2+b1 ii libc6 2.19-17 ii libdbus-1-3 1.8.16-1 ii libdbus-glib-1-2 0.102-1 ii libgcrypt20 1.6.3-2 ii libglib2.0-0 2.42.1-1 ii libgnutls-deb0-28 3.3.8-6 ii libgudev-1.0-0 215-12 ii libmm-glib0 1.4.0-1 ii libndp0 1.4-2 ii libnewt0.52 0.52.17-1+b1 ii libnl-3-200 3.2.24-2 ii libnl-genl-3-200 3.2.24-2 ii libnl-route-3-200 3.2.24-2 ii libnm0 1.0.0-2 ii libpam-systemd 215-12 ii libpolkit-agent-1-0 0.105-8 ii libpolkit-gobject-1-0 0.105-8 ii libreadline6 6.3-8+b3 ii libsoup2.4-1 2.48.0-1 ii libsystemd0 215-12 ii libteamdctl0 1.12-1 ii libuuid1 2.25.2-5 ii lsb-base 4.1+Debian13+nmu1 ii policykit-1 0.105-8 ii udev 215-12 ii wpasupplicant 2.3-1 Versions of packages network-manager recommends: ii crda 3.13-1 ii dnsmasq-base 2.72-3 ii iptables 1.4.21-2+b1 ii iputils-arping 3:20121221-5+b2 ii modemmanager 1.4.0-1 ii ppp 2.4.6-3 Versions of packages network-manager suggests: pn avahi-autoipd <none> pn libteam-utils <none> -- Configuration Files: /etc/NetworkManager/NetworkManager.conf changed: [main] plugins=ifupdown,keyfile no-auto-default=00:16:d3:b3:80:1e,ee:b0:3a:d2:89:45,F0:DE:F1:B8:36:FD, [ifupdown] managed=false -- no debconf information -- brian m. carlson / brian with sandals: Houston, Texas, US +1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187
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