RuggedCom RS400 用户手册
PPP over Modem
RS400
235
ROS™ v3.5
If you are sure the client has installed the PPP link as default gateway, is the client otherwise
connected to a LAN? If the client is connected to a LAN and the best route is to the LAN, the
PPP link will not be used. The following figure illustrates this case. The client will always direct
all packets bound for 10.0.0.10 down its Ethernet connection. This will occur regardless of the
PPP gateway setting and possible lack of connectivity in the Ethernet cloud.
connected to a LAN? If the client is connected to a LAN and the best route is to the LAN, the
PPP link will not be used. The following figure illustrates this case. The client will always direct
all packets bound for 10.0.0.10 down its Ethernet connection. This will occur regardless of the
PPP gateway setting and possible lack of connectivity in the Ethernet cloud.
Figure 164: Gateway Collisions
If you need to make a temporary connection to the server, disconnect the LAN. Otherwise you
must connect to the server at its PPP assigned address.
must connect to the server at its PPP assigned address.
Problem Four
I can ping the server, but not any of the devices it is connected to.
Each of the devices you connect to must have a default gateway setting that points at the local
PPP link address on the server with the PPP connection.
PPP link address on the server with the PPP connection.
Problem Five
I am having performance problems.
What connection speed did the modems negotiate? Are there line quality problems?
What sort of traffic is traversing the PPP link? Is it being saturated with HTTP, FTP or TFTP
traffic?
traffic?