Ping is not working from containers ,showing Destination Host Unreachable

1

hi,
we are using multiple container, Everything was working fine upto today early morning, Suddenly destination host unreachable error came,Try to ping others containers from one of the container it is showing below error(240.169.0.216 is second container ip),may i know why it is going through this ip240.127.0.201

ping 240.169.0.216
PING 240.169.0.216 (240.169.0.216) 56(84) bytes of data.
From 240.127.0.201 icmp_seq=1 Destination Host Unreachable
From 240.127.0.201 icmp_seq=2 Destination Host Unreachable
From 240.127.0.201 icmp_seq=3 Destination Host Unreachable
From 240.127.0.201 icmp_seq=4 Destination Host Unreachable
From 240.127.0.201 icmp_seq=5 Destination Host Unreachable
From 240.127.0.201 icmp_seq=6 Destination Host Unreachable

2

Hi!

The IP range 240.0.0.0 - 255.255.255.255 is a reserved range.

Have you set the containers to use those IP addresses statically, or have you assigned lxdbr0 (the private bridge) to give out IP addresses from that range?

3

Sounds like the Ubuntu Fan is used here which defaults to that range.

4

Please show ip a and ip r inside two of the affected containers, and on the host.

5

Thank you for reply, we plugged in two ethernet cable to each server. we removed one of the ethernet cable and restarted server.
now it is working fine

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