How to do it...
1.Start the server using the configuration file, basic-udp-server.conf:
[root@server]# openvpn --config basic-udp-server.conf
2.Next, create the client configuration file by appending a line to
the basic-udp-client.conf file:
cipher CAST5-CBC
Save it as example6-1-client.conf.
3.Start the client, after which the following message will appear in the client
log:
[root@client]# openvpn --config example6-1-client.conf
... WARNING: 'cipher' is used inconsistently, local='cipher
CAST5-CBC'', remote='cipher BF-CBC''
... [openvpnserver] Peer Connection Initiated with server-
ip:1194
... TUN/TAP device tun0 opened
... /sbin/ip link set dev tun0 up mtu 1500
... /sbin/ip addr add dev tun0 10.200.0.2/24 broadcast
10.200.0.255
... Initialization Sequence Completed
... Authenticate/Decrypt packet error: cipher final failed
And, similarly, on the server side:
... client-ip:52461 WARNING: 'cipher' is used
