RuggedCom RS400 Benutzerhandbuch
PPP over Modem
ROS™ v3.5
224
RS400
• After the PPP link establishment phase is complete, the RuggedCom device sends a
challenge message to the client.
• The client responds with an MD5 hashed value of the password.
• The RuggedCom device checks the response against its own calculation of the hashed
password and clears the call if the values do not match.
The client may also use CHAP to authenticate the server. This is known as two-way
authentication. Two-way authentication is automatically supported, using the usernames and
passwords configured in the PPP Users menu.
authentication. Two-way authentication is automatically supported, using the usernames and
passwords configured in the PPP Users menu.
Note: Each of the user profiles can be specified to work with either PAP and/or CHAP authentication.
CHAP is a much more secure protocol than PAP as the password is known only to the RuggedCom
device and client, and is not sent over the link in clear text. Always use CHAP authentication if you
possibly can. Employ PAP only when it is the only protocol available to the client.
device and client, and is not sent over the link in clear text. Always use CHAP authentication if you
possibly can. Employ PAP only when it is the only protocol available to the client.
11.1.5 Static Routes
Each user profile includes the provision to install a static routing. If the client is attached to a
network and wishes to route between this network and the server, the server must be
configured install the static routing.
network and wishes to route between this network and the server, the server must be
configured install the static routing.
The static routing will last the duration of the call.