No ARP traffic for TAP bridge OpenVPN

NETWORKING SOLUTIONS
1

Hi,

I’ve created a OpenVPN client configuration with TAP interface:

client

dev tap
proto udp
remote 1234.com

resolv-retry infinite
nobind

persist-tun

ca ca.crt
cert testTeltonika.crt
key testTeltonika.key
tls-auth ta.key 1

remote-cert-tls server

data-ciphers CHACHA20-POLY1305
cipher CHACHA20-POLY1305

verb 3

The thing is I can’t ping the remote bridge IP address. I have an ARP table on the Teltonika Router which has no MAC address on the other IP addresses in the network:

10.34.5.2 0x1 0x0 00:00:00:00:00:00 * tap0
10.34.5.1 0x1 0x0 00:00:00:00:00:00 * tap0

I have a successful client connection:

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image1250×116 12.2 KB

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image729×898 42.6 KB

Somehow, I don’t have ARP response from the server either.

Thanks

2

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