Learning by Doing: CISCO Certified Network ... - SCN Research

02:04:22: BR0/0:1 CDPCP: I CONFACK [ACKsent] id 7 len 4
02:04:22: BR0/0:1 CDPCP: State is Open
02:04:22: BR0/0 IPCP: Install route to 192.168.1.1
02:04:23: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1,
changed state to up
02:04:26: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to
5551234 smarts
Then let’s strip it down. If you recall PPP sets up in three stages (hence a three-way
hand-shaking process): LCP, IPCP, and CDPCP.
1. PPP: Phase is ESTABLISHING
2. LCP: O CONFREQ (from source)
3. LCP: AuthProto CHAP (from destination)
4. LCP: I CONFREQ [REQsent] (from source)
5. LCP: AuthProto CHAP (from destination)
6. LCP: O CONFACK [REQsent] (from source)
7. LCP: AuthProto CHAP (from destination)
8. LCP: TIMEout: State ACKsent (from source)
9. LCP: O CONFREQ [ACKsent] (from source)
10. LCP: AuthProto CHAP (from destination)
11. LCP: I CONFACK [ACKsent] (from source)
12. LCP: AuthProto CHAP (from destination)
13. LCP: State is Open (from source)
14. PPP: Phase is AUTHENTICATING, by both (from destination)
15. CHAP: O CHALLENGE from "kissane" (from source)
16. CHAP: I CHALLENGE from "smarts" (from destination)
17. CHAP: I CHALLENGE from "smarts" (from destination)
18. CHAP: I SUCCESS (from source)
19. CHAP: I RESPONSE from "smarts" (from destination)
20. CHAP: O SUCCESS (from source)
21. PPP: Phase is UP (from destination)
22. IPCP: O CONFREQ [Closed] (from source)
23. IPCP: Address 192.168.1.2 (from destination)
24. CDPCP: O CONFREQ (from source)
25. IPCP: I CONFREQ [REQsent] (from source)
26. IPCP: Address 192.168.1.1 (from destination)
27. IPCP: O CONFACK [REQsent] (from source)
28. IPCP: Address 192.168.1.1 (from destination)
29. CDPCP: I CONFREQ [REQsent] (from source)
30. CDPCP: O CONFACK [REQsent] (from source)
31. IPCP: I CONFACK [ACKsent] (from source)
32. IPCP: Address 192.168.1.2 (from destination)
33. IPCP: State is Open (from source)
34. CDPCP: I CONFACK [ACKsent] (from source)
35. CDPCP: State is Open (from destination)
428