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dialer interface loosing ip address after change of username and password

Dear Experts,

Trying to change the username and password for the dialer itnerface on the cisco router for adsl connection.

once done, the machine looses internet connectivity. The password and username are as per isp .

doing ppp pap sent-username XXXX password 0 XXXXXXX

not sure where i should start looking at. Sh ip int brief shows dialer interface ip address unassigned when i change the username andpassword and the method is ipcp.
help is highly appreciated.
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lruiz52
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Please post your config
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ASKER

hi,

there is a ethernet cable connected from the adsl modem to the fast ethernet port for the router. here is the confiuration that is there for the ethernet port and the dialer interface. do let me  know if you would need the whole config. The router is running our call manager express also hence not posting the lengthy config.


CME#sh run int fa0/1
Building configuration...

Current configuration : 158 bytes
!
interface FastEthernet0/1
 mtu 1492
 no ip address
 duplex auto
 speed auto
 pppoe enable group global
 pppoe-client dial-pool-number 1
 no cdp enable
end

CME#sh run int dialer 1
Building configuration...

Current configuration : 249 bytes
!
interface Dialer1
 ip address negotiated
 ip mtu 1492
 ip nbar protocol-discovery
 ip nat outside
 ip virtual-reassembly in
 encapsulation ppp
 dialer pool 1
 ppp authentication chap pap callin
 ppp pap sent-username yyyy password 0 xxxxxxxx
end
hi,

any suggestions. much appreciated. the connection was initially running on copper and the ISP migrated that to fiber. but its still pppoe.

not sure where the trouble is. how can i debug the connection and check where the connection is having problem.
Are you saying that you have an existing username and password which works, but when you change to the new username and password it stops working?

It's normal not to have an IP address, as that's assigned dynamically once you've authenticated ("ip address negotiated").

You can try, in enable mode, "debug ppp authentication" to see what happens when you change your username and password. Try also typing "clear interface dialer 1" after changing it, or do a shut/no shut on it to force it to communicate cleanly. Be sure to type "no debug ppp authentication" when you're done.

If that's failing then you have to talk with the ISP about it. Did they tell you to change it?
thank you very much for the suggestion. we got a new accoutn and need to be cancellign the old one. thats why trying to change the password/username.

will hopefully manage to get that done this weekend and post the results back.

thanks again
Please find below the debug from the router. Do let me know.




CME(config)#int dialer 1
CME(config-if)#ppp pap
CME(config-if)#ppp pap sent 
CME(config-if)#ppp pap sent  
CME(config-if)#ppp pap sent-username
Jul 13 08:13:20: Vi2 PPP: Outbound cdp packet dropped, NCP not negotiated mipl1
% Incomplete command.

CME(config-if)#ppp pap sent-username  mipl1 pass
CME(config-if)#ppp pap sent-username  mipl1 password 0 yyyyyyyyy
CME(config-if)#
CME(config-if)#
CME(config-if)#shut
CME(config-if)#no
Jul 13 08:13:38: Vi2 PPP DISC: Authentication configuration changed
Jul 13 08:13:38: PPP: NET STOP send to AAA.
Jul 13 08:13:38.989: %DIALER-6-UNBIND: Interface Vi2 unbound from profile Di1
Jul 13 08:13:38: Vi2 PPP: Block vaccess from being freed [0x10]
Jul 13 08:13:38: Di1 DDR: dialer shutdown complete
Jul 13 08:13:38: Di1 Deleted neighbor route from AVL tree: topoid 0, address 195.229.248.29
Jul 13 08:13:38: Di1 IPCP: Remove route to 195.229.248.29
Jul 13 08:13:39: Vi2 IPCP: Event[DOWN] State[Open to Starting]
Jul 13 08:13:39: Vi2 IPCP: Event[CLOSE] State[Starting to Initial]
Jul 13 08:13:39: Vi2 CDPCP: Event[DOWN] State[Stopped to Starting]
Jul 13 08:13:39: Vi2 CDPCP: Event[CLOSE] State[Starting to Initial]
Jul 13 08:13:39: Vi2 LCP: Event[DOWN] State[Open to Starting]
Jul 13 08:13:39: Vi2 PPP: Unlocked by [0x10] Still Locked by [0x0]
Jul 13 08:13:39: Vi2 PPP: Free previously blocked vaccess
Jul 13 08:13:39: Vi2 PPP: Phase is DOWN
Jul 13 08:13:39.005: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to down
Jul 13 08:13:39: Vi2 PPP: Sending cstate DOWN notification
Jul 13 08:13:39: Vi2 PPP: Processing CstateDown messageshut
CME(config-if)#
Jul 13 08:13:39.009: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to down
CME(config-if)#
CME(config-if)#
CME(config-if)#
CME(config-if)#
CME(config-if)#
CME(config-if)#
Jul 13 08:14:01.353: %DIALER-6-BIND: Interface Vi2 bound to profile Di1
Jul 13 08:14:01.357: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to up
Jul 13 08:14:01: Vi2 PPP: Sending cstate UP notification
Jul 13 08:14:01: Vi2 PPP: Processing CstateUp message
Jul 13 08:14:01: PPP: Alloc Context [49D0C388]
Jul 13 08:14:01: ppp54 PPP: Phase is ESTABLISHING
Jul 13 08:14:01: Vi2 PPP: Using dialer call direction
Jul 13 08:14:01: Vi2 PPP: Treating connection as a callout
Jul 13 08:14:01: Vi2 PPP: Session handle[F500003A] Session id[54]
Jul 13 08:14:01: Vi2 LCP: Event[OPEN] State[Initial to Starting]
Jul 13 08:14:01: Vi2 PPP: No remote authentication for call-out
Jul 13 08:14:01: Vi2 LCP: O CONFREQ [Starting] id 1 len 10
Jul 13 08:14:01: Vi2 LCP:    MagicNumber 0x280974EA (0x0506280974EA)
Jul 13 08:14:01: Vi2 LCP: Event[UP] State[Starting to REQsent]
Jul 13 08:14:01: Vi2 LCP: I CONFREQ [REQsent] id 111 len 18
Jul 13 08:14:01: Vi2 LCP:    MRU 1492 (0x010405D4)
Jul 13 08:14:01: Vi2 LCP:    AuthProto PAP (0x0304C023)
Jul 13 08:14:01: Vi2 LCP:    MagicNumber 0x7B111C9F (0x05067B111C9F)
Jul 13 08:14:01: Vi2 LCP: O CONFNAK [REQsent] id 111 len 8
Jul 13 08:14:01: Vi2 LCP:    MRU 1500 (0x010405DC)
Jul 13 08:14:01: Vi2 LCP: Event[Receive ConfReq-] State[REQsent to REQsent]
Jul 13 08:14:01: Vi2 LCP: I CONFACK [REQsent] id 1 len 10
Jul 13 08:14:01: Vi2 LCP:    MagicNumber 0x280974EA (0x0506280974EA)
Jul 13 08:14:01: Vi2 LCP: Event[Receive ConfAck] State[REQsent to ACKrcvd]
Jul 13 08:14:01: Vi2 LCP: I CONFREQ [ACKrcvd] id 112 len 18
Jul 13 08:14:01: Vi2 LCP:    MRU 1500 (0x010405DC)
Jul 13 08:14:01: Vi2 LCP:    AuthProto PAP (0x0304C023)
Jul 13 08:14:01: Vi2 LCP:    MagicNumber 0x7B111C9F (0x05067B111C9F)
Jul 13 08:14:01: Vi2 LCP: O CONFACK [ACKrcvd] id 112 len 18
Jul 13 08:14:01: Vi2 LCP:    MRU 1500 (0x010405DC)
Jul 13 08:14:01: Vi2 LCP:    AuthProto PAP (0x0304C023)
Jul 13 08:14:01: Vi2 LCP:    MagicNumber 0x7B111C9F (0x05067B111C9F)
Jul 13 08:14:01: Vi2 LCP: Event[Receive ConfReq+] State[ACKrcvd to Open]
Jul 13 08:14:01: Vi2 PPP: No authorization without authentication
Jul 13 08:14:01: Vi2 PPP: Phase is AUTHENTICATING, by the peer
Jul 13 08:14:01: Vi2 PAP: Using hostname from interface PAP
Jul 13 08:14:01: Vi2 PAP: Using password from interface PAP
Jul 13 08:14:01: Vi2 PAP: O AUTH-REQ id 1 len 19 from "mipl1"
Jul 13 08:14:01: Vi2 LCP: State is Open
Jul 13 08:14:01: Vi2 PAP: I AUTH-ACK id 1 len 5
Jul 13 08:14:01: Vi2 PPP: Phase is FORWARDING, Attempting Forward
Jul 13 08:14:01: Vi2 PPP: Queue IPCP code[1] id[176]
Jul 13 08:14:01: Vi2 PPP: Phase is ESTABLISHING, Finish LCP
Jul 13 08:14:01: Vi2 PPP: Phase is UP
Jul 13 08:14:01: Vi2 IPCP: Protocol configured, start CP. state[Initial]
Jul 13 08:14:01: Vi2 IPCP: Event[OPEN] State[Initial to Starting]
Jul 13 08:14:01: Vi2 IPCP: O CONFREQ [Starting] id 1 len 10
Jul 13 08:14:01: Vi2 IPCP:    Address 0.0.0.0 (0x030600000000)
Jul 13 08:14:01: Vi2 IPCP: Event[UP] State[Starting to REQsent]
Jul 13 08:14:01: Vi2 CDPCP: Protocol configured, start CP. state[Initial]
Jul 13 08:14:01: Vi2 CDPCP: Event[OPEN] State[Initial to Starting]
Jul 13 08:14:01: Vi2 CDPCP: O CONFREQ [Starting] id 1 len 4
Jul 13 08:14:01: Vi2 CDPCP: Event[UP] State[Starting to REQsent]
Jul 13 08:14:01: Vi2 PPP: Process pending ncp packets
Jul 13 08:14:01: Vi2 IPCP: Redirect packet to Vi2
Jul 13 08:14:01: Vi2 IPCP: I CONFREQ [REQsent] id 176 len 10
Jul 13 08:14:01: Vi2 IPCP:    Address 195.229.248.29 (0x0306C3E5F81D)
Jul 13 08:14:01: Vi2 IPCP: O CONFACK [REQsent] id 176 len 10
Jul 13 08:14:01: Vi2 IPCP:    Address 195.229.248.29 (0x0306C3E5F81D)
Jul 13 08:14:01: Vi2 IPCP: Event[Receive ConfReq+] State[REQsent to ACKsent]
Jul 13 08:14:01: Vi2 IPCP: I CONFNAK [ACKsent] id 1 len 10
Jul 13 08:14:01: Vi2 IPCP:    Address 2.50.139.50 (0x030602328B32)
Jul 13 08:14:01: Vi2 IPCP: O CONFREQ [ACKsent] id 2 len 10
Jul 13 08:14:01: Vi2 IPCP:    Address 2.50.139.50 (0x030602328B32)
Jul 13 08:14:01: Vi2 IPCP: Event[Receive ConfNak/Rej] State[ACKsent to ACKsent]
Jul 13 08:14:01: Vi2 LCP: I PROTREJ [Open] id 113 len 10 protocol CDPCP (0x01010004)
Jul 13 08:14:01: Vi2 CDPCP: Event[Receive CodeRej-] State[REQsent to Stopped]
Jul 13 08:14:01.865: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up
Jul 13 08:14:01: Vi2 IPCP: I CONFACK [ACKsent] id 2 len 10
Jul 13 08:14:01: Vi2 IPCP:    Address 2.50.139.50 (0x030602328B32)
Jul 13 08:14:01: Vi2 IPCP: Event[Receive ConfAck] State[ACKsent to Open]
Jul 13 08:14:01: Vi2 IPCP: State is Open
Jul 13 08:14:01: Di1 IPCP: Install negotiated IP interface address 2.50.139.50
Jul 13 08:14:01: Di1 Added to neighbor route AVL tree: topoid 0, address 195.229.248.29
Jul 13 08:14:01: Di1 IPCP: Install route to 195.229.248.29
Jul 13 08:14:02: Vi2 LCP: I TERMREQ [Open] id 114 len 4
Jul 13 08:14:02: Vi2 PPP DISC: Received LCP TERMREQ from peer
Jul 13 08:14:02: PPP: NET STOP send to AAA.
Jul 13 08:14:02: Vi2 PPP: Phase is TERMINATING
Jul 13 08:14:02: Vi2 IPCP: Event[DOWN] State[Open to Starting]
Jul 13 08:14:02: Vi2 IPCP: Event[CLOSE] State[Starting to Initial]
Jul 13 08:14:02: Vi2 CDPCP: Event[DOWN] State[Stopped to Starting]
Jul 13 08:14:02: Vi2 CDPCP: Event[CLOSE] State[Starting to Initial]
Jul 13 08:14:02: Vi2 LCP: O TERMACK [Open] id 114 len 4
Jul 13 08:14:02: Vi2 LCP: Event[Receive TermReq] State[Open to Stopping]
Jul 13 08:14:02: Di1 Deleted neighbor route from AVL tree: topoid 0, address 195.229.248.29
Jul 13 08:14:02: Di1 IPCP: Remove route to 195.229.248.29
Jul 13 08:14:04: Vi2 PPP: No remote authentication for call-out
Jul 13 08:14:04: Vi2 LCP: Event[Timeout-] State[Stopping to Stopped]
Jul 13 08:14:04: Vi2 LCP: Event[DOWN] State[Stopped to Starting]
Jul 13 08:14:04: Vi2 PPP: Phase is DOWN
Jul 13 08:14:04.121: %DIALER-6-UNBIND: Interface Vi2 unbound from profile Di1
Jul 13 08:14:04.125: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to down
Jul 13 08:14:04.125: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to down
Jul 13 08:14:26.609: %DIALER-6-BIND: Interface Vi2 bound to profile Di1
Jul 13 08:14:26.613: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to up
Jul 13 08:14:26: Vi2 PPP: Sending cstate UP notification
Jul 13 08:14:26: Vi2 PPP: Processing CstateUp message
Jul 13 08:14:26: PPP: Alloc Context [49D0C388]
Jul 13 08:14:26: ppp55 PPP: Phase is ESTABLISHING
Jul 13 08:14:26: Vi2 PPP: Using dialer call direction
Jul 13 08:14:26: Vi2 PPP: Treating connection as a callout
Jul 13 08:14:26: Vi2 PPP: Session handle[E500003B] Session id[55]
Jul 13 08:14:26: Vi2 LCP: Event[OPEN] State[Initial to Starting]
Jul 13 08:14:26: Vi2 PPP: No remote authentication for call-out
Jul 13 08:14:26: Vi2 LCP: O CONFREQ [Starting] id 1 len 10
Jul 13 08:14:26: Vi2 LCP:    MagicNumber 0x2809D794 (0x05062809D794)
Jul 13 08:14:26: Vi2 LCP: Event[UP] State[Starting to REQsent]
Jul 13 08:14:26: Vi2 LCP: I CONFREQ [REQsent] id 245 len 18
Jul 13 08:14:26: Vi2 LCP:    MRU 1492 (0x010405D4)
Jul 13 08:14:26: Vi2 LCP:    AuthProto PAP (0x0304C023)
Jul 13 08:14:26: Vi2 LCP:    MagicNumber 0x58B1595B (0x050658B1595B)
Jul 13 08:14:26: Vi2 LCP: O CONFNAK [REQsent] id 245 len 8
Jul 13 08:14:26: Vi2 LCP:    MRU 1500 (0x010405DC)
Jul 13 08:14:26: Vi2 LCP: Event[Receive ConfReq-] State[REQsent to REQsent]
Jul 13 08:14:26: Vi2 LCP: I CONFACK [REQsent] id 1 len 10
Jul 13 08:14:26: Vi2 LCP:    MagicNumber 0x2809D794 (0x05062809D794)
Jul 13 08:14:26: Vi2 LCP: Event[Receive ConfAck] State[REQsent to ACKrcvd]
Jul 13 08:14:26: Vi2 LCP: I CONFREQ [ACKrcvd] id 246 len 18
Jul 13 08:14:26: Vi2 LCP:    MRU 1500 (0x010405DC)
Jul 13 08:14:26: Vi2 LCP:    AuthProto PAP (0x0304C023)
Jul 13 08:14:26: Vi2 LCP:    MagicNumber 0x58B1595B (0x050658B1595B)
Jul 13 08:14:26: Vi2 LCP: O CONFACK [ACKrcvd] id 246 len 18
Jul 13 08:14:26: Vi2 LCP:    MRU 1500 (0x010405DC)
Jul 13 08:14:26: Vi2 LCP:    AuthProto PAP (0x0304C023)
Jul 13 08:14:26: Vi2 LCP:    MagicNumber 0x58B1595B (0x050658B1595B)
Jul 13 08:14:26: Vi2 LCP: Event[Receive ConfReq+] State[ACKrcvd to Open]
Jul 13 08:14:26: Vi2 PPP: No authorization without authentication
Jul 13 08:14:26: Vi2 PPP: Phase is AUTHENTICATING, by the peer
Jul 13 08:14:26: Vi2 PAP: Using hostname from interface PAP
Jul 13 08:14:26: Vi2 PAP: Using password from interface PAP
Jul 13 08:14:26: Vi2 PAP: O AUTH-REQ id 1 len 19 from "mipl1"
Jul 13 08:14:26: Vi2 LCP: State is Open
Jul 13 08:14:27: Vi2 PAP: I AUTH-ACK id 1 len 5
Jul 13 08:14:27: Vi2 PPP: Phase is FORWARDING, Attempting Forward
Jul 13 08:14:27: Vi2 PPP: Queue IPCP code[1] id[50]
Jul 13 08:14:27: Vi2 PPP: Phase is ESTABLISHING, Finish LCP
Jul 13 08:14:27: Vi2 PPP: Phase is UP
Jul 13 08:14:27: Vi2 IPCP: Protocol configured, start CP. state[Initial]
Jul 13 08:14:27: Vi2 IPCP: Event[OPEN] State[Initial to Starting]
Jul 13 08:14:27: Vi2 IPCP: O CONFREQ [Starting] id 1 len 10
Jul 13 08:14:27: Vi2 IPCP:    Address 0.0.0.0 (0x030600000000)
Jul 13 08:14:27: Vi2 IPCP: Event[UP] State[Starting to REQsent]
Jul 13 08:14:27: Vi2 CDPCP: Protocol configured, start CP. state[Initial]
Jul 13 08:14:27: Vi2 CDPCP: Event[OPEN] State[Initial to Starting]
Jul 13 08:14:27: Vi2 CDPCP: O CONFREQ [Starting] id 1 len 4
Jul 13 08:14:27: Vi2 CDPCP: Event[UP] State[Starting to REQsent]
Jul 13 08:14:27: Vi2 PPP: Process pending ncp packets
Jul 13 08:14:27: Vi2 IPCP: Redirect packet to Vi2
Jul 13 08:14:27: Vi2 IPCP: I CONFREQ [REQsent] id 50 len 10
Jul 13 08:14:27: Vi2 IPCP:    Address 195.229.248.29 (0x0306C3E5F81D)
Jul 13 08:14:27: Vi2 IPCP: O CONFACK [REQsent] id 50 len 10
Jul 13 08:14:27: Vi2 IPCP:    Address 195.229.248.29 (0x0306C3E5F81D)
Jul 13 08:14:27: Vi2 IPCP: Event[Receive ConfReq+] State[REQsent to ACKsent]
Jul 13 08:14:27: Vi2 IPCP: I CONFNAK [ACKsent] id 1 len 10
Jul 13 08:14:27: Vi2 IPCP:    Address 2.50.139.50 (0x030602328B32)
Jul 13 08:14:27: Vi2 IPCP: O CONFREQ [ACKsent] id 2 len 10
Jul 13 08:14:27: Vi2 IPCP:    Address 2.50.139.50 (0x030602328B32)
Jul 13 08:14:27: Vi2 IPCP: Event[Receive ConfNak/Rej] State[ACKsent to ACKsent]
Jul 13 08:14:27: Vi2 LCP: I PROTREJ [Open] id 247 len 10 protocol CDPCP (0x01010004)
Jul 13 08:14:27: Vi2 CDPCP: Event[Receive CodeRej-] State[REQsent to Stopped]
Jul 13 08:14:27.117: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to up
Jul 13 08:14:27: Vi2 IPCP: I CONFACK [ACKsent] id 2 len 10
Jul 13 08:14:27: Vi2 IPCP:    Address 2.50.139.50 (0x030602328B32)
Jul 13 08:14:27: Vi2 IPCP: Event[Receive ConfAck] State[ACKsent to Open]
Jul 13 08:14:27: Vi2 IPCP: State is Open
Jul 13 08:14:27: Di1 IPCP: Install negotiated IP interface address 2.50.139.50
Jul 13 08:14:27: Di1 Added to neighbor route AVL tree: topoid 0, address 195.229.248.29
Jul 13 08:14:27: Di1 IPCP: Install route to 195.229.248.29
Jul 13 08:14:27: Vi2 LCP: I TERMREQ [Open] id 248 len 4
Jul 13 08:14:27: Vi2 PPP DISC: Received LCP TERMREQ from peer
Jul 13 08:14:27: PPP: NET STOP send to AAA.
Jul 13 08:14:27: Vi2 PPP: Phase is TERMINATING
Jul 13 08:14:27: Vi2 IPCP: Event[DOWN] State[Open to Starting]
Jul 13 08:14:27: Vi2 IPCP: Event[CLOSE] State[Starting to Initial]
Jul 13 08:14:27: Vi2 CDPCP: Event[DOWN] State[Stopped to Starting]
Jul 13 08:14:27: Vi2 CDPCP: Event[CLOSE] State[Starting to Initial]
Jul 13 08:14:27: Vi2 LCP: O TERMACK [Open] id 248 len 4
Jul 13 08:14:27: Vi2 LCP: Event[Receive TermReq] State[Open to Stopping]
Jul 13 08:14:27: Di1 Deleted neighbor route from AVL tree: topoid 0, address 195.229.248.29
Jul 13 08:14:27: Di1 IPCP: Remove route to 195.229.248.29
Jul 13 08:14:28: Vi2 PPP: Outbound ip packet dropped, line protocol not up
Jul 13 08:14:29: Vi2 PPP: No remote authentication for call-out
Jul 13 08:14:29: Vi2 LCP: Event[Timeout-] State[Stopping to Stopped]
Jul 13 08:14:29: Vi2 LCP: Event[DOWN] State[Stopped to Starting]
Jul 13 08:14:29: Vi2 PPP: Phase is DOWN
Jul 13 08:14:29.593: %DIALER-6-UNBIND: Interface Vi2 unbound from profile Di1
Jul 13 08:14:29.597: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access2, changed state to down
Jul 13 08:14:29.597: %LINK-3-UPDOWN: Interface Virtual-Access2, changed state to down
ASKER CERTIFIED SOLUTION
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issue fixed internally.