System information

Address Configuration for Connected Devices
390 AlterPath OnBoard Administrator’s Guide
The authorized user must do the following:
• Make sure the user’s workstation can exchange packets with the
OnBoard.
The user can test whether the user’s workstation can access the OnBoard
by entering the OnBoard’s public IP address in a browser to try to bring
up the Web Manager.
• If a network or host route is needed to enable communications with the
OnBoard, configure the route.
• Use the PPTP client on the workstation to create the PPTP VPN
connection profile, entering the following:
• PPTP server address = OnBoard public IP address (203.1.2.3)
• Username = OnBoard user name, in this example: allSPs
• Password = PPTP password
• Create the PPTP VPN connection.
• Enter the ifconfig or ipconfig command on the command line of
the user’s workstation to discover the IP address assigned to the
OnBoard’s end of the PPTP VPN tunnel.
When the PPTP tunnel is being activated, the OnBoard chooses an IP
address from each of the address pools for the endpoints of the PPTP link.
The client’s end of the point-to-point link receives an address from the
remote address pool, and the OnBoard receives an address from the local
address pool. Usually the first connection obtains the first address from
each pool, so the client would be 192.168.3.1 and the OnBoard
would be 192.168.2.1.
• Enter the OnBoard’s PPTP-assigned address either in a browser or with
ssh on the command line to access the OnBoard. In this example the
address would be 192.168.2.1.
• Create a static route to inform the workstation that the devices to be
contacted are at the other end of the point-to-point link.
• In this example, to communicate with “sp1” and “sp2,” a route would
needed to “sub1,” which has the network IP address 192.168.1.0 as
shown below:
route add -net 192.168.1.0 mask 255.255.255.0 via 192.168.2.1