Bay Networks 3395A, Руководство по настройке

Страница: 67 / 146

Configuring IPCP Connections
893-826-A 4-9
If you use the communication server as a router for the LAN devices, you can
locally configure a route-to-host entry at each UNIX device on the LAN
subnet. This entry specifies the path to the PC on the remote subnet. Most
UNIX devices support a ROUTE ADD HOST command, which can identify
the communication server (140.179.41.25) as the router to use to gain access to
the PC (16.20.48.102).
Instead of defining a route-to-host entry on each LAN host device, you can
define a route-to-host entry on the router to act as an Internet gateway. In this
case, a UNIX device on the LAN sends PPP traffic to the default router, which
then forwards the traffic to the communication server. If you also configure the
router as the Internet gateway on the communication server as in the previous
example, the PC has access to Internet addresses available through the router.
A PC with No Configured Internet Address
Figure 4-3 shows a PC without an Internet address attached to the
communication server. The PC connection can be direct or through a modem,
and the PC can reside in the same subnet as the communication server or in a
remote subnet. A router is attached to the LAN. The PPP Protocol is enabled on
the communication server and the appropriate asynchronous ports.
When a PC does not have an Internet address, the PPP port on the
communication server can assign an address to the PC when it negotiates the
PPP link. You specify the address at the PPP port prior to link negotiation time.
For example, this command assigns the address 140.179.41.37 to PPP port 10
on the communication server:
TS3395>> define port 10 ppp ip remote address 140.179.41.37
When the PC on the remote subnet attempts to connect to port 10, the port
assigns this address to it.