Package: iproute2
Version: 4.3.0-1+b1
Severity: normal
Dear Maintainer,
I'm using Stretch packages and I see a fundamental difference in ifconfig/ip
between Debian 8 and Debian 9. There are extra colons being put in after the
interface using /sbin/ifconfig and /sbin/ip. I'm using a third party firewall
agent that is unable to grab the network interfaces correctly through /sbin/ip
because of the colon not being recognized on an interface. I need to know if
this is fixable or if there's a workaround. Or, is this the intended action?
I've tried the same procedures below on a Debian 8 system and they report back
the interface just fine.
You can see through the scenarios below, I have an eth0 and eth0:1 interface,
along with lo. /sbin/ip doesn't show the eth0:1 interface at all, so I grabbed
it through /sbin/ifconfig. The way this third party agent is working, it's
looking for /sbin/ip -o link show eth0: and /sbin/ip -o link show eth0:1: to
both come up without a hitch. The ones without the colon have been tested to
fully work on a stock Debian 8 (jessie) image, not Debian 9 (stretch).
root@sandbox:~# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 96.126.108.191 netmask 255.255.255.0 broadcast 96.126.108.255
inet6 2600:3c03::f03c:91ff:fe70:989d prefixlen 64 scopeid 0x0<global>
inet6 fe80::f03c:91ff:fe70:989d prefixlen 64 scopeid 0x20<link>
ether f2:3c:91:70:98:9d txqueuelen 1000 (Ethernet)
RX packets 8861190 bytes 4193527512 (3.9 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8562901 bytes 3997697400 (3.7 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eth0:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.135.145 netmask 255.255.128.0 broadcast 0.0.0.0
ether f2:3c:91:70:98:9d txqueuelen 1000 (Ethernet)
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 2988597 bytes 2376311697 (2.2 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2988597 bytes 2376311697 (2.2 GiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
root@sandbox:~# /sbin/ip -o link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode
DEFAULT group default \ link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
mode DEFAULT group default qlen 1000\ link/ether f2:3c:91:70:98:9d brd
ff:ff:ff:ff:ff:ff
root@sandbox:~# /sbin/ifconfig | grep flags= | awk '{print $1}'
eth0:
eth0:1:
lo:
root@sandbox:~# /sbin/ip -o link show eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP
mode DEFAULT group default qlen 1000\ link/ether f2:3c:91:70:98:9d brd
ff:ff:ff:ff:ff:ff
root@sandbox:~# /sbin/ip -o link show eth0:
RTNETLINK answers: No such device
Cannot send link get request: No such device
root@sandbox:~# /sbin/ip -o link show eth0:1
RTNETLINK answers: No such device
Cannot send link get request: No such device
root@sandbox:~# /sbin/ip -o link show eth0:1:
RTNETLINK answers: No such device
Cannot send link get request: No such device
root@sandbox:~# /sbin/ip -o link show lo
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode
DEFAULT group default \ link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
root@sandbox:~# /sbin/ip -o link show lo:
RTNETLINK answers: No such device
Cannot send link get request: No such device
-- System Information:
Debian Release: stretch
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.3.0-1-amd64 (SMP w/2 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 iproute2 depends on:
ii libc6 2.22-5
ii libdb5.3 5.3.28-11
ii libselinux1 2.4-3+b1
Versions of packages iproute2 recommends:
pn libatm1 <none>
pn libxtables11 <none>
Versions of packages iproute2 suggests:
pn iproute2-doc <none>
-- no debconf information
