Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Router 1720 fail to negotiate a protocol

Hi every body

My Cisco 1720 router finaly start to dial to internet with the Zyxel Omni.net LCD but it timeout when sending Ack in the negotiation of the protocol. my ISP use pap.

here is a part of the debug screen:

00:03:16: Se0 LCP: O CONFREQ [ACKsent] id 19 len 16

00:03:16: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

00:03:16: Se0 LCP: MagicNumber 0xB0C5721E (0x0506B0C5721E)

00:03:16: Se0 LCP: I CONFREQ [ACKsent] id 9 len 24

00:03:16: Se0 LCP: MRU 1514 (0x010405EA)

00:03:16: Se0 LCP: ACCM 0x00000000 (0x020600000000)

00:03:16: Se0 LCP: AuthProto PAP (0x0304C023)

00:03:16: Se0 LCP: MagicNumber 0x8A09C557 (0x05068A09C557)

00:03:16: Se0 LCP: O CONFACK [ACKsent] id 9 len 24

00:03:16: Se0 LCP: MRU 1514 (0x010405EA)

00:03:16: Se0 LCP: ACCM 0x00000000 (0x020600000000)

00:03:16: Se0 LCP: AuthProto PAP (0x0304C023)

00:03:16: Se0 LCP: MagicNumber 0x8A09C557 (0x05068A09C557)

00:03:18: Se0 LCP: TIMEout: State ACKsent

Any Ideea ??

thank's Karoly

3 REPLIES
Cisco Employee

Re: Router 1720 fail to negotiate a protocol

More LCP dialog will be helpful to see which side is going out of sequence. From above debug, router is waiting for CONFACK reply from other side for its first O CONFREQ id 19. Router did CONFACK the isp's I CONFREQ with id 9..

Post more LCP debug flow which will give us more idea.

New Member

Re: Router 1720 fail to negotiate a protocol

Here is the entire debug screen:

2d17h: %LINK-3-UPDOWN: Interface Serial0, changed state to up

2d17h: Se0 PPP: Treating connection as a callout

2d17h: Se0 PPP: Phase is ESTABLISHING, Active Open

2d17h: Se0 PPP: No remote authentication for call-out

2d17h: Se0 LCP: O CONFREQ [Closed] id 26 len 20

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: PFC (0x0702)

2d17h: Se0 LCP: ACFC (0x0802)

2d17h: Se0 LCP: I CONFREJ [REQsent] id 26 len 8

2d17h: Se0 LCP: PFC (0x0702)

2d17h: Se0 LCP: ACFC (0x0802)

2d17h: Se0 LCP: O CONFREQ [REQsent] id 27 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [REQsent] id 3 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xFF8BE62F (0x0506FF8BE62F)

2d17h: Se0 LCP: O CONFACK [REQsent] id 3 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xFF8BE62F (0x0506FF8BE62F)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 28 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 5 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x6ED75DC2 (0x05066ED75DC2)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 5 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x6ED75DC2 (0x05066ED75DC2)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 29 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 7 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xC99EC644 (0x0506C99EC644)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 7 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xC99EC644 (0x0506C99EC644)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 30 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 9 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xEB417C16 (0x0506EB417C16)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 9 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xEB417C16 (0x0506EB417C16)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 31 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 11 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x3CF2FBB8 (0x05063CF2FBB8)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 11 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x3CF2FBB8 (0x05063CF2FBB8)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 32 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 13 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x6E6E75AA (0x05066E6E75AA)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 13 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x6E6E75AA (0x05066E6E75AA)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 33 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 15 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xE3B4EE6C (0x0506E3B4EE6C)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 15 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xE3B4EE6C (0x0506E3B4EE6C)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 34 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 17 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x7B105E7E (0x05067B105E7E)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 17 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x7B105E7E (0x05067B105E7E)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 35 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 19 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x64A3D260 (0x050664A3D260)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 19 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0x64A3D260 (0x050664A3D260)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: O CONFREQ [ACKsent] id 36 len 16

2d17h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d17h: Se0 LCP: MagicNumber 0xBED62EC8 (0x0506BED62EC8)

2d17h: Se0 LCP: I CONFREQ [ACKsent] id 21 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xB5DF89C7 (0x0506B5DF89C7)

2d17h: Se0 LCP: O CONFACK [ACKsent] id 21 len 24

2d17h: Se0 LCP: MRU 1514 (0x010405EA)

2d17h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d17h: Se0 LCP: AuthProto PAP (0x0304C023)

2d17h: Se0 LCP: MagicNumber 0xB5DF89C7 (0x0506B5DF89C7)

2d17h: Se0 LCP: TIMEout: State ACKsent

2d17h: Se0 LCP: State is Listen

2d17h: %LINK-5-CHANGED: Interface Serial0, changed state to reset

2d17h: Se0 LCP: State is Closed

2d17h: Se0 PPP: Phase is DOWN

2d17h: %LINK-3-UPDOWN: Interface Serial0, changed state to down

2d17h: Se0 LCP: State is Closed

2d17h: Se0 PPP: Phase is DOWN

New Member

Re: Router 1720 fail to negotiate a protocol

Hi here is a new debug message seria with I has obtain when I use remote peer authentication.I has created a user HiPer ith a blank password an d in this case the fail is in phase autheticating:

The predecend posts debug messages but without remote peer authentication.

2d18h: %LINK-3-UPDOWN: Interface Serial0, changed state to up

2d18h: Se0 PPP: Treating connection as a callout

2d18h: Se0 PPP: Phase is ESTABLISHING, Active Open

2d18h: Se0 LCP: O CONFREQ [Closed] id 37 len 24

2d18h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xBF1E9845 (0x0506BF1E9845)

2d18h: Se0 LCP: PFC (0x0702)

2d18h: Se0 LCP: ACFC (0x0802)

2d18h: Se0 LCP: I CONFREQ [REQsent] id 3 len 24

2d18h: Se0 LCP: MRU 1514 (0x010405EA)

2d18h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0x98E75990 (0x050698E75990)

2d18h: Se0 LCP: O CONFACK [REQsent] id 3 len 24

2d18h: Se0 LCP: MRU 1514 (0x010405EA)

2d18h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0x98E75990 (0x050698E75990)

2d18h: Se0 LCP: TIMEout: State ACKsent

2d18h: Se0 LCP: O CONFREQ [ACKsent] id 38 len 24

2d18h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xBF1E9845 (0x0506BF1E9845)

2d18h: Se0 LCP: PFC (0x0702)

2d18h: Se0 LCP: ACFC (0x0802)

2d18h: Se0 LCP: TIMEout: State ACKsent

2d18h: Se0 LCP: O CONFREQ [ACKsent] id 39 len 24

2d18h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xBF1E9845 (0x0506BF1E9845)

2d18h: Se0 LCP: PFC (0x0702)

2d18h: Se0 LCP: ACFC (0x0802)

2d18h: Se0 LCP: I CONFREJ [ACKsent] id 39 len 8

2d18h: Se0 LCP: PFC (0x0702)

2d18h: Se0 LCP: ACFC (0x0802)

2d18h: Se0 LCP: O CONFREQ [ACKsent] id 40 len 20

2d18h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xBF1E9845 (0x0506BF1E9845)

2d18h: Se0 PAP: LCP not open, discarding packet

2d18h: Se0 LCP: TIMEout: State ACKsent

2d18h: Se0 LCP: O CONFREQ [ACKsent] id 41 len 20

2d18h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xBF1E9845 (0x0506BF1E9845)

2d18h: Se0 LCP: I CONFREQ [ACKsent] id 6 len 24

2d18h: Se0 LCP: MRU 1514 (0x010405EA)

2d18h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xA32115EC (0x0506A32115EC)

2d18h: Se0 LCP: O CONFACK [ACKsent] id 6 len 24

2d18h: Se0 LCP: MRU 1514 (0x010405EA)

2d18h: Se0 LCP: ACCM 0x00000000 (0x020600000000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xA32115EC (0x0506A32115EC)

2d18h: Se0 LCP: TIMEout: State ACKsent

2d18h: Se0 LCP: O CONFREQ [ACKsent] id 42 len 20

2d18h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xBF1E9845 (0x0506BF1E9845)

2d18h: Se0 LCP: I CONFACK [ACKsent] id 42 len 20

2d18h: Se0 LCP: ACCM 0x000A0000 (0x0206000A0000)

2d18h: Se0 LCP: AuthProto PAP (0x0304C023)

2d18h: Se0 LCP: MagicNumber 0xBF1E9845 (0x0506BF1E9845)

2d18h: Se0 LCP: State is Open

2d18h: Se0 PPP: Phase is AUTHENTICATING, by both

2d18h: Se0 PAP: O AUTH-REQ id 3 len 22 from "peastern"

2d18h: Se0 PAP: I AUTH-REQ id 10 len 11 from "HiPer"

2d18h: Se0 PAP: Authenticating peer HiPer

2d18h: Se0 PAP: O AUTH-ACK id 10 len 5

2d18h: Se0 PAP: I AUTH-REQ id 12 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 12 len 5

2d18h: Se0 PAP: I AUTH-REQ id 14 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 14 len 5

2d18h: Se0 PAP: O AUTH-REQ id 4 len 22 from "peastern"

2d18h: Se0 PAP: I AUTH-REQ id 16 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 16 len 5

2d18h: Se0 PAP: I AUTH-REQ id 18 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 18 len 5

2d18h: Se0 PAP: I AUTH-REQ id 20 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 20 len 5

2d18h: Se0 PAP: I AUTH-REQ id 22 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 22 len 5

2d18h: Se0 PAP: O AUTH-REQ id 5 len 22 from "peastern"

2d18h: Se0 PAP: I AUTH-REQ id 24 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 24 len 5

2d18h: Se0 PAP: I AUTH-REQ id 26 len 11 from "HiPer"

2d18h: Se0 PAP: Resending Auth-Ack

2d18h: Se0 PAP: O AUTH-ACK id 26 len 5

2d18h: Se0 PAP: O AUTH-REQ id 6 len 22 from "peastern"

2d18h: %LINK-5-CHANGED: Interface Serial0, changed state to reset

2d18h: Se0 PPP: Phase is TERMINATING

2d18h: Se0 LCP: State is Closed

2d18h: Se0 PPP: Phase is DOWN

2d18h: %LINK-3-UPDOWN: Interface Serial0, changed state to down

245
Views
0
Helpful
3
Replies
CreatePlease to create content