Intel ER8100STUS - Express 8100 Router, Справочное руководство

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Reference.bok : Chapter07 43 Wed Apr 22 10:58:08 1998
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Internet Tunnels
IP routing services then use the best link to the remote IP network (the link via
the Internet Service Provider). For example, this could be an ISDN link, in which
case the full structure would be
Data security over X.25
links application of
Internet Tunnels
To allow data security over X.25 links, Internet Tunnels can be used on top of
them. this offers all the security features supported by PPP (data encryption,
CHAP and PAP) on the X.25 links.
To establish a tunnel over an X.25 link, the X.25 link is set up as normal, together
with an Internet Tunnel to the IP address of the remote router over the X.25 link.
Data security is configured on the tunnel as required. A single static route is then
IP routing IPX routing Bridging
PPP
TCP
IP static host route
PPP
ISDN port
X.25 links
(virtual circuits)
Express Router
X.25 network
Tunnels adding device
authentication and encryption
security to the X.25 links
Express Router
Express Router
1630
Express 8100 Router
Status
Express 8100 Router
Express 8100 Router