In network bonding second nic (eth1) is not pingable while first one (eth0) is always pingable"
Hi folks,
I'm using Debian 10 (point release 5) and i've set up the bonding for
eth0 and eth1 in 'active-backup' mode, i'm using virtualbox VM for
testing it, if i disconnect cable (virtually from first ethernet -
eth0) ping to bond0 IP stops and if i disconnect it from eth1 and
reconnect on eth0 ping again start working. Do not really know what is
wrong!
Problem in [1] (searched mail archives) is same but no solution is
given there or user did not respond further on it, he/she might have
found the solution already, though there are some tests which i've
performed as mentioned in [1] and without bonding (dual network mode)
I can ping both IP from remote.
In this setup i'm using a D-Link 8 port switch to connect eth0 using
ethernet cable and eth1 is connected on wireless adapter of my laptop.
Does somebody know what may be wrong?
[2] bonding output:
user@myhost:~$ cat /proc/net/bonding/bond0
Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011)
Bonding Mode: fault-tolerance (active-backup)
Primary Slave: eth0 (primary_reselect always)
Currently Active Slave: eth0
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 200
Down Delay (ms): 200
Slave Interface: eth0
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 08:00:27:be:86:95
Slave queue ID: 0
Slave Interface: eth1
MII Status: up
Speed: 1000 Mbps
Duplex: full
Link Failure Count: 0
Permanent HW addr: 08:00:27:3a:6e:db
Slave queue ID: 0
[3] configuration : /etc/network/interfaces
user@myhost:~$ cat /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
auto bond0
iface bond0 inet static
address 192.168.0.140
netmask 255.255.255.0
gateway 192.168.0.1
bond-slaves eth0 eth1
bond-mode active-backup
bond-miimon 100
bond-primary eth0
bond-downdelay 200
bond-updelay 200
post-up route add -net 224.0.0.0 netmask 240.0.0.0 dev bond0
Thank you.
Note : As soon as one interface cable is disconnected another
interface becomes active interfaces - this is visible.
Regards,
[1] https://lists.debian.org/debian-user/2012/01/msg01790.html
[2] bonding output
[3] network configuration under /etc/network/interfaces
Reply to: