James Knott wrote:
On 2021-04-27 8:47 a.m., Per Jessen wrote:
The bridge device.
What is the bridge device?
'br0' is the bridge device: 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br0 state UP group default qlen 1000 link/ether 6c:62:6d:a0:75:aa brd ff:ff:ff:ff:ff:ff inet6 fe80::6e62:6dff:fea0:75aa/64 scope link valid_lft forever preferred_lft forever 3: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 6c:62:6d:a0:75:aa brd ff:ff:ff:ff:ff:ff inet 88.198.24.136/27 brd 88.198.24.159 scope global br0 valid_lft forever preferred_lft forever inet 88.198.172.121/29 scope global br0 valid_lft forever preferred_lft forever inet 192.168.77.1/24 brd 192.168.77.255 scope global br0 valid_lft forever preferred_lft forever inet 88.198.172.125/29 scope global secondary br0 valid_lft forever preferred_lft forever inet 88.198.172.126/29 scope global secondary br0 valid_lft forever preferred_lft forever inet6 2a01:4f8:130:232d::99/64 scope global valid_lft forever preferred_lft forever inet6 2a01:4f8:130:232d::24/64 scope global valid_lft forever preferred_lft forever inet6 2a01:4f8:130:232d::1/64 scope global valid_lft forever preferred_lft forever inet6 fe80::6e62:6dff:fea0:75aa/64 scope link valid_lft forever preferred_lft forever
Bridges (essentially a 2 port switch) haven't been common for many years. However, it sounds like it's the cause of your problem.
It's needed in virtual hosts. -- Per Jessen, Zürich (19.1°C) http://www.hostsuisse.com/ - dedicated server rental in Switzerland.