Article	Figure 1	Figure 2	Figure 3	Figure 4
Figure 5	Figure 6	Listing 1	Listing 2	Listing 3
Listing 4	Listing 5	Listing 6	Listing 7	Listing 8
Listing 9	Table 1	jan94.tar

Figure 1: Establishing a PPP link

+------+        +-----------+           +--------------+
|      | UP     |           | OPENED    |              | SUCCESS/NONE
| Dead |------->| Establish |---------->| Authenticate |--+
|      |        |           |           |              |  |
+------+        +-----------+           +--------------+  |
FAIL |                   FAIL |             |
+<--------------+             +----------+             |
|                             |                        |
|            +-----------+    |           +---------+  |
|       DOWN |           |    |   CLOSING |         |  |
+------------| Terminate |<---+<----------| Network |<-+
|           |                |         |
+-----------+                +---------+

This figure was extracted from the Network RFC 1331.