We are running NMS. However, the operation method does not work internally and goes out to the VPN public IP. trust -> untrust -> isp(internet outside) -> VPN untrust Communication is done in the same way as above. In NMS, the status of VPN untrust is monitored by ICMP. However, after 30 minutes, the VPN untrust interface suddenly stops pinging. The workaround is to send a ping command to VPN untrust -> VPN ISP using source ip, then NMS can send ping normally again. I don't know why the ping keeps dropping every 30 minutes. We are experiencing a VPN stoppage every 30 minutes. help !!!!!!!!!!!!!!!!!!~~~~~~~~~~~~
... View more