Package: ifupdown Version: 0.8.44 Severity: normal Hi -
When /etc/network/interfaces is configured with the inet6 address family of type "dhcp" and isc-dhcp-client is used as the DHCP client, DHCPv6 doesn't appear to work properly: (janeway:20:36:EST)% sudo ifup eth0 Internet Systems Consortium DHCP Client 4.4.3-P1 Copyright 2004-2022 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Can't bind to dhcp address: Cannot assign requested address Please make sure there is no other dhcp server running and that there's no entry for dhcp or bootp in /etc/inetd.conf. Also make sure you are not running HP JetAdmin software, which includes a bootp server. If you think you have received this message due to a bug rather than a configuration issue please read the section on submitting bugs on either our web page at www.isc.org or in the README file before submitting a bug. These pages explain the proper process and the information we find helpful for debugging. exiting. ifup: failed to bring up eth0 (janeway:20:36:EST)% ifconfig eth0 eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.3.8.98 netmask 255.255.255.252 broadcast 10.3.8.99 inet6 2620:6:2000:12c:250:56ff:fe1a:aaab prefixlen 64 scopeid 0x0<global> inet6 fe80::250:56ff:fe1a:aaab prefixlen 64 scopeid 0x20<link> ether 00:50:56:1a:aa:ab txqueuelen 1000 (Ethernet) RX packets 3554 bytes 1100609 (1.0 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3944 bytes 458573 (447.8 KiB) TX errors 0 dropped 1 overruns 0 carrier 0 collisions 0 (janeway:20:36:EST)% systemctl --failed UNIT LOAD ACTIVE SUB DESCRIPTION ● networking.service loaded failed failed Raise network interfaces Legend: LOAD → Reflects whether the unit definition was properly loaded. ACTIVE → The high-level unit activation state, i.e. generalization of SUB. SUB → The low-level unit activation state, values depend on unit type. 1 loaded units listed. As a result, networking.service is listed failed and the stateful address from DHCPv6 is never applied to the interface. If called manually, the stateful address is correctly applied: (janeway:20:36:EST)% sudo dhclient -6 eth0 (janeway:20:36:EST)% ifconfig eth0 eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.3.8.98 netmask 255.255.255.252 broadcast 10.3.8.99 inet6 2620:6:2000:12c:250:56ff:fe1a:aaab prefixlen 64 scopeid 0x0<global> inet6 fe80::250:56ff:fe1a:aaab prefixlen 64 scopeid 0x20<link> inet6 2620:6:2000:12c::22bb prefixlen 128 scopeid 0x0<global> <<<<------ added, but this should have been there upon ifup eth0 ether 00:50:56:1a:aa:ab txqueuelen 1000 (Ethernet) RX packets 16967 bytes 3565104 (3.3 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 17090 bytes 2126654 (2.0 MiB) TX errors 0 dropped 1 overruns 0 carrier 0 collisions 0 This used to work for years(?) but now no longer does. I'm not sure when it broke, to be honest. - Mark -- Package-specific info: --- /etc/network/interfaces: # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 10.3.8.98 netmask 255.255.255.252 gateway 10.3.8.97 iface eth0 inet6 dhcp accept_ra 1 autoconf 1 --- up and down scripts installed: /etc/network/if-down.d: total 4 lrwxrwxrwx 1 root root 33 Mar 1 2024 bridge -> /usr/lib/bridge-utils/ifupdown.sh -rwxr-xr-x 1 root root 759 Dec 9 2022 resolved /etc/network/if-post-down.d: total 0 lrwxrwxrwx 1 root root 33 Mar 1 2024 bridge -> /usr/lib/bridge-utils/ifupdown.sh /etc/network/if-pre-up.d: total 0 lrwxrwxrwx 1 root root 33 Mar 1 2024 bridge -> /usr/lib/bridge-utils/ifupdown.sh /etc/network/if-up.d: total 16 -rwxr-xr-x 1 root root 721 Jun 11 2012 lprng -rwxr-xr-x 1 root root 1129 Mar 10 2024 ntpsec-ntpdate -rwxr-xr-x 1 root root 4665 Jun 28 2023 resolved -- System Information: Debian Release: trixie/sid APT prefers testing APT policy: (500, 'testing') Architecture: i386 (x86_64) Foreign Architectures: amd64 Kernel: Linux 6.11.10-amd64 (SMP w/1 CPU thread; PREEMPT) Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) Versions of packages ifupdown depends on: ii adduser 3.137 ii iproute2 6.12.0-1 ii libc6 2.40-3 Versions of packages ifupdown recommends: ii isc-dhcp-client [dhcp-client] 4.4.3-P1-5 Versions of packages ifupdown suggests: pn ppp <none> pn rdnssd <none> -- debconf information: ifupdown/convert-interfaces: true
