Package: ifupdown
Version: 0.8.35
Severity: normal
In /usr/share/man/man5/interfaces.5.gz the following example is giving for
auto eth0
allow-hotplug eth1
iface eth0 inet dhcp
iface eth0 inet6 auto
iface eth1 inet static
address 192.168.1.2/24
gateway 192.168.1.1
iface eth1 inet6 static
address fec0:0:0:1::2/64
gateway fec0:0:0:1::1
However using this example causes /lib/systemd/system/networking.service to
fail with:
Jul 4 00:15:00 debian ifup[359]: RTNETLINK answers: File exists
because there are two "gateway" statements in /etc/network/interfaces
A possible solution is to put the ipv6 part in /etc/network/interfaces.d/eth0
-- System Information:
Debian Release: 10.4
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.19.0-9-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL
set to C.UTF-8), LANGUAGE=en_US:en (charmap=UTF-8) (ignored: LC_ALL set to
C.UTF-8)
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages ifupdown depends on:
ii adduser 3.118
ii iproute2 4.20.0-2
ii libc6 2.28-10
ii lsb-base 10.2019051400
Versions of packages ifupdown recommends:
ii isc-dhcp-client [dhcp-client] 4.4.1-2
Versions of packages ifupdown suggests:
pn ppp <none>
pn rdnssd <none>
-- no debconf information
