Hello List,
There is this issue bugging me since a long time and try to put a stop
to it:
[22444423.820856] br0: received packet on tap0 with own address as
source address
[22444423.821068] br0: received packet on tap0 with own address as
source address
[22444423.844718] br0: received packet on tap0 with own address as
source address
[22444423.844952] br0: received packet on tap0 with own address as
source address
[22444423.868796] br0: received packet on tap0 with own address as
source address
[22444435.110486] net_ratelimit: 8 callbacks suppressed
[22444435.110489] br0: received packet on tap0 with own address as
source address
[22444435.178721] br0: received packet on tap0 with own address as
source address
Getting it in the kernel log of one of my servers. This is a Layer 2
ethernet bridge setup.
This issue does not cause any outage, extra traffic, slowdown, broadcast
storm or whatever, the communication is all OK but I keep getting
these messages once in a while in the servers dmesg and would like them
to go away by actually finding the root cause and fixing the problem.
My setup is a bit complex but I narrow it down to this:
Server |BR0| == tap0 + tap1
Client1 |BR0| == tap0 + eth0
Client2 |BR0| == tap0 + eth0
the 2 taps go to 2 another locations where they are bridged into the
local eth0 therefore bridging 3 networks together.
The config is the same on both sides.
Server Configs are for 2 separate openvpn daemons:
dev tap0
server-bridge 10.20.20.1 255.255.255.0 10.20.20.11 10.20.20.22
tls-server
tls-auth ta.key 0
client-to-client
dh dh2048.pem
ca ca.crt
cert server.crt
key server.key
port 4000
comp-lzo
keepalive 10 120
mute-replay-warnings
with slightly different IP ranges. Note, these ranges just for the
configuration to work, the actual ip range will be 192.168.5.x assigned
to br0 on the endpoints.
But as I noticed this does not cause the issue I can go and reconfigure
tap0 on the endpoints to 0.0.0.0 and still keep getting these messages
on the main server.
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