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From: francis yeung <fyeung@fyeung5.netific.com>
Message-Id: <199604192314.XAA10011@fyeung5.netific.com>
Subject: ipcp loop
To: questions@freebsd.org
Date: Fri, 19 Apr 1996 23:14:37 +0000 ()
Cc: hackers@freebsd.org, fyeung@fyeung5.netific.com (francis yeung)
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Greetings,


	I tried to connect to Xylogics's terminal server using iijppp. 
	- ppp -auto xylogics and using dynamic IP address i.e. ifaddr 0 0..

	After the LCP layer is up, the IPCP seems to be in a loop 
	trying to negotiate IP address. See below for the ppp.log.


	07-11 07:14:30 [154] *Connected!
	07-11 07:14:31 [154] LCP: state change Initial --> Closed
	07-11 07:14:31 [154] LCP: SendConfigReq
	07-11 07:14:31 [154]  ACFCOMP
	07-11 07:14:31 [154]  PROTOCOMP
	07-11 07:14:31 [154]  ACCMAP [6] 00000000
	07-11 07:14:31 [154]  MRU [4] 1500
	07-11 07:14:31 [154]  MAGICNUM [6] 879f647c
	07-11 07:14:31 [154] LCP: state change Closed --> Req-Sent
	07-11 07:14:31 [154] Listening at 3000.
	07-11 07:14:31 [154] PPP Started.
	07-11 07:14:32 [154] LCP: Received Configure Ack (1) state = Req-Sent (6)
	07-11 07:14:32 [154] LCP: state change Req-Sent --> Ack-Rcvd
	07-11 07:14:34 [154] LCP: Received Configure Request (2) state = Ack-Rcvd (7)
	07-11 07:14:34 [154]  ACCMAP 00000000
	07-11 07:14:34 [154]  MAGICNUM 98075a49
	07-11 07:14:34 [154]  PROTOCOMP
	07-11 07:14:34 [154]  ACFCOMP
	07-11 07:14:34 [154] LCP:  SendConfigAck(Ack-Rcvd)
	07-11 07:14:34 [154]  ACCMAP 00000000
	07-11 07:14:34 [154]  MAGICNUM 98075a49
	07-11 07:14:34 [154]  PROTOCOMP
	07-11 07:14:34 [154]  ACFCOMP
	07-11 07:14:34 [154] LCP:  SendConfigAck(Ack-Rcvd)
	07-11 07:14:34 [154]  ACCMAP 00000000
	07-11 07:14:34 [154]  MAGICNUM 98075a49
	07-11 07:14:34 [154]  PROTOCOMP
	07-11 07:14:34 [154]  ACFCOMP
	07-11 07:14:34 [154] LCP: state change Ack-Rcvd --> Opend
	07-11 07:14:34 [154] LCP: LayerUp
	07-11 07:14:34 [154] Phase: Authenticate
	07-11 07:14:34 [154]  his = 0, mine = 0
	07-11 07:14:34 [154] Phase: Network
	07-11 07:14:34 [154] IPCP: state change Initial --> Closed
	07-11 07:14:34 [154] IPCP Up event!!
	07-11 07:14:34 [154] IPCP: SendConfigReq
	07-11 07:14:34 [154]  IPADDR [6] 192.0.0.1
	07-11 07:14:34 [154]  COMPPROTO [6] 002d0f00
	 07-11 07:14:34 [154] IPCP: state change Closed --> Req-Sent
	 07-11 07:14:34 [154] CCP: state change Initial --> Closed
	 07-11 07:14:34 [154] CCP Up event!!
	 07-11 07:14:37 [154] IPCP: Received Configure Request (3) state = Req-Sent (6)
	 07-11 07:14:37 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:37 [154] IPCP:  SendConfigAck(Req-Sent)
	 07-11 07:14:37 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:37 [154] IPCP: state change Req-Sent --> Ack-Sent
	 07-11 07:14:40 [154] IPCP: Received Configure Request (4) state = Ack-Sent (8)
	 07-11 07:14:40 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:40 [154] IPCP:  SendConfigAck(Ack-Sent)
	 07-11 07:14:40 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:43 [154] IPCP: Received Configure Request (5) state = Ack-Sent (8)
	 07-11 07:14:43 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:43 [154] IPCP:  SendConfigAck(Ack-Sent)
	 07-11 07:14:43 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:46 [154] IPCP: Received Configure Request (6) state = Ack-Sent (8)
	 07-11 07:14:46 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:46 [154] IPCP:  SendConfigAck(Ack-Sent)
	 07-11 07:14:46 [154]  IPADDR[6]  168.95.127.222
	 07-11 07:14:49 [154] IPCP: Received Configure Request (7) state = Ack-Sent (8)
	 07-11 07:14:49 [154]  IPADDR[6]  168.95.127.222
	  
	  ...

	It seems to me that there was an IPCP collision and Xylogics never ack'd
	iijppp's SendConfigAck(Ack-sent).

	Is this a ijjppp problem or a Xylogics problem ?

	Thank you for your help.

	Francis