@conor
I have removed the LAN Gateway and ... Tadaaam !
PING SRV-1 to RT-1
ping 192.168.1.1
Pinging 192.168.1.1 with 32 bytes of data:
Reply from 192.168.1.1: bytes=32 time<1ms TTL=63
Reply from 192.168.1.1: bytes=32 time<1ms TTL=63
Reply from 192.168.1.1: bytes=32 time<1ms TTL=63
Reply from 192.168.1.1: bytes=32 time<1ms TTL=63
Ping statistics for 192.168.1.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms
and SRV-1 to DNS :
ping 8.8.8.8
Pinging 8.8.8.8 with 32 bytes of data:
Reply from 8.8.8.8: bytes=32 time=14ms TTL=54
Reply from 8.8.8.8: bytes=32 time=14ms TTL=54
Reply from 8.8.8.8: bytes=32 time=14ms TTL=54
Reply from 8.8.8.8: bytes=32 time=13ms TTL=54
Ping statistics for 8.8.8.8:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 13ms, Maximum = 14ms, Average = 13ms
Thank you very much for your help