I setup openvpn on CentOs for our office. I'm using it without any problem, can ping all PCs and servers, network printers.
Recently I installed Elastix Phone System to our office, it's in the same IP range and I can ping Elastix server and open it's web interface within office network but not through openvpn.
It's strange that I can still ping all PCs, servers, printers even the network phones that are connected to Elastix but can't ping Elastix itself through openvpn
I checked the firewall on Elastix, it's all turned off. I even tried to turn it on and allow openvpn port but still no luck.
Does anyone happen to have same or similar issue or can guess what might be the problem?
Edit: Here is the route table.
172.21.17.8 * 255.255.255.248 U 0 0 0 eth2 192.168.123.0 * 255.255.255.0 U 0 0 0 eth0 default 172.21.17.14 0.0.0.0 UG 0 0 0 eth2