Astronomik Hello to all. I have next server configuration. cat server-main.conf ca /etc/openvpn/keys/ca.crt cert /etc/openvpn/keys/server.crt key /etc/openvpn/keys/server.key dh /etc/openvpn/keys/dh1024.pem client-config-dir ccd keepalive 10 120 comp-lzo persist-key persist-tun status openvpn-status.log log openvpn-log.log log-append openvpn-append.log verb 3 /etc/openvpn# cat server-tap1.conf management 127.0.0.2 7505 port 5190 proto tcp dev tap1 server 192.168.11.0 255.255.255.128 ifconfig-pool-persist ipp1.txt push "route 192.168.11.0 255.255.255.128" push "route 192.168.10.0 255.255.255.128" push "route 192.168.3.0 255.255.255.128" #push "route 192.168.2.0 255.255.255.128" push "route 192.168.1.0 255.255.255.128" push "redirect-gateway" cipher AES-128-CBC # AES config server-main.conf etc/openvpn# cat server-tap0.conf management localhost 7505 port 443 proto tcp dev tap0 server 192.168.10.0 255.255.255.0 ifconfig-pool-persist ipp0.txt push "route 192.168.10.0 255.255.255.0" push "dhcp-option DNS 192.168.1.1" push "dhcp-option WINS 192.168.1.1" config server-main.conf For example, client A and client B have ip 192.168.10.6 and 192.168.10.7, and client C and client D have ip 192.168.11.6 and 192.168.11.7. I can ping from B clients C and D, from A - C and D too. But I can not ping A from B and B from A. Why? And what I cat to do than A ping B and inversely? openvpn --version OpenVPN 2.1.3 x86_64-pc-linux-gnu [SSL] [LZO2] [EPOLL] [PKCS11] [MH] [PF_INET6] [eurephia] built on Oct 22 2010 Thanks.