** Merge proposal linked: https://code.launchpad.net/~paelzer/ubuntu/+source/iproute2/+git/iproute2/+merge/409821
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to iproute2 in Ubuntu. https://bugs.launchpad.net/bugs/1662620 Title: "ip addr add" permits illegal labels Status in iproute2 package in Ubuntu: Fix Released Status in iproute2 source package in Bionic: Triaged Bug description: ip-address(8) manpage states: label NAME Each address may be tagged with a label string. In order to preserve compatibility with Linux-2.0 net aliases, this string must coincide with the name of the device or must be prefixed with the device name followed by colon. But you can omit the colon, "ip addr add" is ONLY checking the label is prefixed with the device: # ip addr add 1.1.1.1 label test1 dev eth0 "dev" (eth0) must match "label" (test1). # ip addr add 1.1.1.2 label eth0-test2 dev eth0 # ip addr add 1.1.1.3 label eth0:test3 dev eth0 Now ifconfig becomes confused about eth0-test2: # ifconfig eth0-test2 eth0-test2: error fetching interface information: Device not found # ifconfig eth0:test3 eth0:test3 Link encap:Ethernet HWaddr b0:d5:cc:fe:1d:7c inet addr:1.1.1.3 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:171 And daemons like ntpd also log errors about the interface with the illegal label: ntpd[7570]: eth0-test3: getting interface flags: No such device ## => many of this error per minute until: ntpd[7570]: Too many errors. Shutting up. So, I think ip addr show disallow adding address with illegal (as stated by his own documentation) labels, it must also check for the colon following the dev name. Version: 4.3.0-1ubuntu3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iproute2/+bug/1662620/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
