Cabletron Systems Cabletron CyberSWITCH CSX400 - Manual (Page 48)

Planning for CSX400 ISDN Configuration
34 CSX400 and CSX400-DC User’s Guide
If the remote router supports unnumbered mode, neither address needs to be specified. Figure 6
provides a simple example of an unnumbered mode configuration.
Figure 6 CSX400 in Unnumbered Mode
For numbered mode, consider the capabilities of the remote router as well as your requirements.
Specify a Source WAN IP address if the CSX400 must be on the same subnetwork as the remote
router.
Figure 7 is an example of a Class B IP network (128.1).
Figure 7 CSX400 in Numbered Mode on the Same Subnetwork as the Remote Router
CSX400
WAN LINK
NO SOURCE
IP ADDRESS NO REMOTE
IP ADDRESS
REMOTE ROUTER
100_1
1
CSX400
WAN LINK
128.1.129.1
255.255.255.0 128.1.1.2
255.255.255.0
REMOTE ROUTER
*SOURCE IP
ADDRESS