206.100.242.2 206.100.242.12
------------------------+------------------------------+
| |
| +------+
+-------------+ |Cisco |
| Portmaster | | 2501 |
| PM2E | +---+--+
| w/5 BRI | |
+-+--+--+--+-++ +----------+
206.|100.242.201 | Internet |
| |
|(ISDN Dialup Line) +-------->
|
206.|100.242.202 (Customer Router subnetted 255.255.255.252)
+-----------+
| Cisco | (Customer's ISDN Router)
| 4000 |
+----+------+
| 208.100.88.0 Customer's Class C
| Network
-----------------------+---------------------------------------
Later
Kelley