Information Technology Reference
In-Depth Information
Network Control Protocol
After the peers have successfully performed whatever authentication is required, the negotiation moves
into the NCP phase. If both peers are properly configured, the NCP negotiation might look like the
following example, which shows a client PC dialing into and negotiating with a NAS:
solvang# show debug
Generic IP:
IP peer address activity debugging is on
PPP:
PPP protocol negotiation debugging is on
*Mar 1 21:35:04.186: As4 PPP: Phase is UP
*Mar 1 21:35:04.190: As4 IPCP: O CONFREQ [Not negotiated] id 1 len 10
*Mar 1 21:35:04.194: As4 IPCP: Address 10.1.2.1 (0x03060A010201)
*Mar 1 21:35:04.282: As4 IPCP: I CONFREQ [REQsent] id 1 len 28
*Mar 1 21:35:04.282: As4 IPCP: CompressType VJ 15 slots CompressSlotID
(0x0206002D0F01)
*Mar 1 21:35:04.286: As4 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 1 21:35:04.290: As4 IPCP: PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar 1 21:35:04.298: As4 IPCP: SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar 1 21:35:04.306: As4 IPCP: O CONFREJ [REQsent] id 1 len 10
*Mar 1 21:35:04.310: As4 IPCP: CompressType VJ 15 slots CompressSlotID
(0x0206002D0F01)
*Mar 1 21:35:04.314: As4 CCP: I CONFREQ [Not negotiated] id 1 len 15
*Mar 1 21:35:04.318: As4 CCP: MS-PPC supported bits 0x00000001 (0x120600000001)
*Mar 1 21:35:04.318: As4 CCP: Stacker history 1 check mode EXTENDED (0x1105000104)
*Mar 1 21:35:04.322: As4 LCP: O PROTREJ [Open] id 3 len 21 protocol CCP
*Mar 1 21:35:04.326: As4 LCP: (0x80FD0101000F12060000000111050001)
*Mar 1 21:35:04.330: As4 LCP: (0x04)
*Mar 1 21:35:04.334: As4 IPCP: I CONFACK [REQsent] id 1 len 10
*Mar 1 21:35:04.338: As4 IPCP: Address 10.1.2.1 (0x03060A010201)
*Mar 1 21:35:05.186: %LINEPROTO-5-UPDOWN: Line protocol on Interface Async4, changed
state to up
*Mar 1 21:35:07.274: As4 IPCP: I CONFREQ [ACKrcvd] id 2 len 22
*Mar 1 21:35:07.278: As4 IPCP: Address 0.0.0.0 (0x030600000000)
*Mar 1 21:35:07.282: As4 IPCP: PrimaryDNS 0.0.0.0 (0x810600000000)
*Mar 1 21:35:07.286: As4 IPCP: SecondaryDNS 0.0.0.0 (0x830600000000)
*Mar 1 21:35:07.294: As4 IPCP: O CONFNAK [ACKrcvd] id 2 len 22
*Mar 1 21:35:07.298: As4 IPCP: Address 10.1.2.2 (0x03060A010202)
*Mar 1 21:35:07.302: As4 IPCP: PrimaryDNS 10.2.2.3 (0x81060A020203)
*Mar 1 21:35:07.310: As4 IPCP: SecondaryDNS 10.2.3.1 (0x83060A020301)
*Mar 1 21:35:07.426: As4 IPCP: I CONFREQ [ACKrcvd] id 3 len 22
*Mar 1 21:35:07.430: As4 IPCP: Address 10.1.2.2 (0x03060A010202)
*Mar 1 21:35:07.434: As4 IPCP: PrimaryDNS 10.2.2.3 (0x81060A020203)
*Mar 1 21:35:07.442: As4 IPCP: SecondaryDNS 10.2.3.1 (0x83060A020301)
*Mar 1 21:35:07.446: ip_get_pool: As4: validate address = 10.1.2.2
*Mar 1 21:35:07.450: ip_get_pool: As4: using pool default
*Mar 1 21:35:07.450: ip_get_pool: As4: returning address = 10.1.2.2
*Mar 1 21:35:07.454: set_ip_peer_addr: As4: address = 10.1.2.2 (3) is redundant
*Mar 1 21:35:07.458: As4 IPCP: O CONFACK [ACKrcvd] id 3 len 22
*Mar 1 21:35:07.462: As4 IPCP: Address 10.1.2.2 (0x03060A010202)
*Mar 1 21:35:07.466: As4 IPCP: PrimaryDNS 10.2.2.3 (0x81060A020203)
*Mar 1 21:35:07.474: As4 IPCP: SecondaryDNS 10.2.3.1 (0x83060A020301)
*Mar 1 21:35:07.478: As4 IPCP: State is Open
*Mar 1 21:35:07.490: As4 IPCP: Install route to 10.1.2.2
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