isdn call establishes but doesnt pass traffic

[arun.mathew]

hi,

we are facing an issue with the isdn link, which is used as a back_up link using a separate router.

isdn call is establishing and can see the call in ' sh isdn active ' and status but it does get dropped in 20sec and whenever the isdn session is establised, we are not able to ping the remote dialer ip. HQ router has other isdn connections and all others are working properly with the same configuration.

configs are as follows;

Branch RTR:

!

username CCCHQ password 0 cisco

!

isdn switch-type basic-net3

!

interface BRI0/3/0

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-net3

isdn point-to-point-setup

ppp authentication chap callin

!

interface Dialer0

ip address 10.10.202.6 255.255.255.252

encapsulation ppp

dialer pool 1

dialer remote-name CCCHQ

dialer string 12345678

dialer-group 1

no peer neighbor-route

no cdp enable

ppp authentication chap callin

ppp chap hostname CCCBR

ppp chap password 0 cisco

!

ip route 0.0.0.0 0.0.0.0 10.10.202.6

!

dialer-list 1 protocol ip permit

!

HQ RTR:

!

username CCCBR password 0 cisco

!

isdn switch-type basic-net3

!

!

interface BRI0/0/0

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-net3

isdn point-to-point-setup

ppp authentication chap callin

!

!

interface Dialer1

ip address 10.10.202.5 255.255.255.252

encapsulation ppp

dialer pool 1

dialer remote-name CCCBR

dialer-group 1

no cdp enable

ppp authentication chap callin

ppp chap hostname CCCHQ

ppp chap password 0 cisco

!

access-list 111 deny   ospf any any

access-list 111 permit ip any any

dialer-list 1 protocol ip list 111

!

Below are the debugs from CCC_BR;

ping 10.10.202.5

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.10.202.5, timeout is 2 seconds:

Sep 23 11:10:51.251 DST: %LINK-3-UPDOWN: Interface BRI0/3/0:1, changed state to up

Sep 23 11:10:51.251 DST: %DIALER-6-BIND: Interface BR0/3/0:1 bound to profile Di0

Sep 23 11:10:51.251 DST: %ISDN-6-CONNECT: Interface BRI0/3/0:1 is now connected to 12345678 N/A

Sep 23 11:10:51.263 DST: BR0/3/0:1 PPP: Using dialer call direction

Sep 23 11:10:51.263 DST: BR0/3/0:1 PPP: Treating connection as a callout

Sep 23 11:10:51.263 DST: BR0/3/0:1 PPP: Session handle[89000014] Session id[17]

Sep 23 11:10:51.263 DST: BR0/3/0:1 PPP: Phase is ESTABLISHING, Active Open

Sep 23 11:10:51.263 DST: BR0/3/0:1 PPP: No remote authentication for call-out

Sep 23 11:10:51.263 DST: BR0/3/0:1 LCP: O CONFREQ [Closed] id 161 len 10

Sep 23 11:10:51.263 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5).

Sep 23 11:10:53.251 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:10:53.251 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 162 len 10

Sep 23 11:10:53.251 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5).

Sep 23 11:10:55.267 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:10:55.267 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 163 len 10

Sep 23 11:10:55.267 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5).

Sep 23 11:10:57.251 DST: %ISDN-6-CONNECT: Interface BRI0/3/0:1 is now connected to 12345678 N/A

Sep 23 11:10:57.283 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:10:57.283 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 164 len 10

Sep 23 11:10:57.283 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5).

Sep 23 11:10:59.299 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:10:59.299 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 165 len 10

Sep 23 11:10:59.299 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5).

Success rate is 0 percent (0/5)

CCC_ISDN#

Sep 23 11:11:01.315 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:11:01.315 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 166 len 10

Sep 23 11:11:01.315 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:11:03.331 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:11:03.331 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 167 len 10

Sep 23 11:11:03.331 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:11:05.347 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:11:05.347 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 168 len 10

Sep 23 11:11:05.347 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:11:07.363 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:11:07.363 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 169 len 10

Sep 23 11:11:07.363 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:11:09.379 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:11:09.379 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 170 len 10

Sep 23 11:11:09.379 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:11:11.395 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:11:11.395 DST: BR0/3/0:1 LCP: State is Listen

Sep 23 11:11:11.395 DST: %ISDN-6-DISCONNECT: Interface BRI0/3/0:1  disconnected from 12345678 , call lasted 20 seconds

Sep 23 11:11:11.475 DST: %LINK-3-UPDOWN: Interface BRI0/3/0:1, changed state to down

Sep 23 11:11:11.479 DST: %DIALER-6-UNBIND: Interface BR0/3/0:1 unbound from profile Di0

Sep 23 11:11:11.487 DST: BR0/3/0:1 PPP: Sending Acct Event[Down] id[18]

Sep 23 11:11:11.487 DST: BR0/3/0:1 LCP: State is Closed

Sep 23 11:11:11.487 DST: BR0/3/0:1 PPP: Phase is DOWN

CCC_ISDN#

CCC_ISDN#

CCC_ISDN#ping 10.10.202.5

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.10.202.5, timeout is 2 seconds:

Sep 23 11:13:37.280 DST: %LINK-3-UPDOWN: Interface BRI0/3/0:1, changed state to up

Sep 23 11:13:37.280 DST: %DIALER-6-BIND: Interface BR0/3/0:1 bound to profile Di0

Sep 23 11:13:37.280 DST: %ISDN-6-CONNECT: Interface BRI0/3/0:1 is now connected to 12345678 N/A

Sep 23 11:13:37.292 DST: BR0/3/0:1 PPP: Using dialer call direction

Sep 23 11:13:37.292 DST: BR0/3/0:1 PPP: Treating connection as a callout

Sep 23 11:13:37.292 DST: BR0/3/0:1 PPP: Session handle[6B000015] Session id[18]

Sep 23 11:13:37.292 DST: BR0/3/0:1 PPP: Phase is ESTABLISHING, Active Open

Sep 23 11:13:37.292 DST: BR0/3/0:1 PPP: No remote authentication for call-out

Sep 23 11:13:37.292 DST: BR0/3/0:1 LCP: O CONFREQ [Closed] id 171 len 10

Sep 23 11:13:37.292 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1E8DA8 (0x05062C1E8DA8).

Sep 23 11:13:39.272 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:13:39.272 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 172 len 10

Sep 23 11:13:39.272 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1E8DA8 (0x05062C1E8DA8).

Sep 23 11:13:41.288 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:13:41.288 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 173 len 10

Sep 23 11:13:41.288 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1E8DA8 (0x05062C1E8DA8).

Sep 23 11:13:43.280 DST: %ISDN-6-CONNECT: Interface BRI0/3/0:1 is now connected to 44439468 N/A

Sep 23 11:13:43.304 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:13:43.304 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 174 len 10

Sep 23 11:13:43.304 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1E8DA8 (0x05062C1E8DA8).

Sep 23 11:13:45.320 DST: BR0/3/0:1 LCP: Timeout: State REQsent

Sep 23 11:13:45.320 DST: BR0/3/0:1 LCP: O CONFREQ [REQsent] id 175 len 10

Sep 23 11:13:45.320 DST: BR0/3/0:1 LCP:    MagicNumber 0x2C1E8DA8 (0x05062C1E8DA8).

Below are the debugs from CCC_HQ;

CCC_HQ#sh isdn active

--------------------------------------------------------------------------------

                                ISDN ACTIVE CALLS

--------------------------------------------------------------------------------

Call    Calling      Called       Remote  Seconds Seconds Seconds Charges

Type    Number       Number       Name    Used    Left    Idle    Units/Currency

--------------------------------------------------------------------------------

In     12345678    12345679                     6     113       6              

--------------------------------------------------------------------------------

CCC_ISDN#

CCC_ISDN#

Sep 23 11:09:33.282 DST: ISDN BR0/0/0 EVENT: process_rxstate: ces/callid 1/0x30D calltype 1 HOST_INCOMING_CALL

Sep 23 11:09:33.282 DST: ISDN BR0/0/0 EVENT: host_incoming_call: call_id 0x030D, Guid = D78D3F7A83EC bchan 1

Sep 23 11:09:33.282 DST: ISDN BR0/0/0 EVENT: UserIdle: callid 0x30D received ACCEPT_CALL (0x13)

Sep 23 11:09:33.282 DST: %LINK-3-UPDOWN: Interface BRI0/0/0:2, changed state to up

Sep 23 11:09:33.282 DST: %ISDN-6-CONNECT: Interface BRI0/0/0:2 is now connected to 12345679 N/A

Sep 23 11:09:33.290 DST: BR0/0/0:2 PPP: Using dialer call direction

Sep 23 11:09:33.290 DST: BR0/0/0:2 PPP: Treating connection as a callin

Sep 23 11:09:33.290 DST: BR0/0/0:2 PPP: Session handle[5200031D] Session id[776]

Sep 23 11:09:33.290 DST: BR0/0/0:2 PPP: Phase is ESTABLISHING, Passive Open

Sep 23 11:09:33.290 DST: BR0/0/0:2 LCP: State is Listen

Sep 23 11:09:33.422 DST: ISDN BR0/0/0 EVENT: process_rxstate: ces/callid 1/0x30D calltype 1 HOST_CONNECT

Sep 23 11:09:33.518 DST: BR0/0/0:2 LCP: I CONFREQ [Listen] id 151 len 10

Sep 23 11:09:33.518 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:33.518 DST: BR0/0/0:2 LCP: O CONFREQ [Listen] id 233 len 15

Sep 23 11:09:33.518 DST: BR0/0/0:2 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:09:33.518 DST: BR0/0/0:2 LCP:    MagicNumber 0x286DEA35 (0x0506286DEA35)

Sep 23 11:09:33.518 DST: BR0/0/0:2 LCP: O CONFACK [Listen] id 151 len 10

Sep 23 11:09:33.518 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:35.514 DST: BR0/0/0:2 LCP: I CONFREQ [ACKsent] id 152 len 10

Sep 23 11:09:35.514 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:35.514 DST: BR0/0/0:2 LCP: O CONFACK [ACKsent] id 152 len 10

Sep 23 11:09:35.514 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:35.522 DST: BR0/0/0:2 LCP: Timeout: State ACKsent

Sep 23 11:09:35.522 DST: BR0/0/0:2 LCP: O CONFREQ [ACKsent] id 234 len 15

Sep 23 11:09:35.522 DST: BR0/0/0:2 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:09:35.522 DST: BR0/0/0:2 LCP:    MagicNumber 0x286DEA35 (0x0506286DEA35)

Sep 23 11:09:37.530 DST: BR0/0/0:2 LCP: I CONFREQ [ACKsent] id 153 len 10

Sep 23 11:09:37.530 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:37.530 DST: BR0/0/0:2 LCP: O CONFACK [ACKsent] id 153 len 10

Sep 23 11:09:37.530 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:37.538 DST: BR0/0/0:2 LCP: Timeout: State ACKsent

Sep 23 11:09:37.538 DST: BR0/0/0:2 LCP: O CONFREQ [ACKsent] id 235 len 15

Sep 23 11:09:37.538 DST: BR0/0/0:2 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:09:37.538 DST: BR0/0/0:2 LCP:    MagicNumber 0x286DEA35 (0x0506286DEA35)

Sep 23 11:09:39.546 DST: BR0/0/0:2 LCP: I CONFREQ [ACKsent] id 154 len 10

Sep 23 11:09:39.546 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:39.546 DST: BR0/0/0:2 LCP: O CONFACK [ACKsent] id 154 len 10

Sep 23 11:09:39.546 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:39.554 DST: BR0/0/0:2 LCP: Timeout: State ACKsent

Sep 23 11:09:39.554 DST: BR0/0/0:2 LCP: O CONFREQ [ACKsent] id 236 len 15

Sep 23 11:09:39.554 DST: BR0/0/0:2 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:09:39.554 DST: BR0/0/0:2 LCP:    MagicNumber 0x286DEA35 (0x0506286DEA35)

Sep 23 11:09:41.562 DST: BR0/0/0:2 LCP: I CONFREQ [ACKsent] id 155 len 10

Sep 23 11:09:41.562 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:41.562 DST: BR0/0/0:2 LCP: O CONFACK [ACKsent] id 155 len 10

Sep 23 11:09:41.562 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:41.570 DST: BR0/0/0:2 LCP: Timeout: State ACKsent

Sep 23 11:09:41.570 DST: BR0/0/0:2 LCP: O CONFREQ [ACKsent] id 237 len 15

Sep 23 11:09:41.570 DST: BR0/0/0:2 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:09:41.570 DST: BR0/0/0:2 LCP:    MagicNumber 0x286DEA35 (0x0506286DEA35)

Sep 23 11:09:43.578 DST: BR0/0/0:2 LCP: I CONFREQ [ACKsent] id 156 len 10

Sep 23 11:09:43.578 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:43.578 DST: BR0/0/0:2 LCP: O CONFACK [ACKsent] id 156 len 10

Sep 23 11:09:43.578 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:43.586 DST: BR0/0/0:2 LCP: Timeout: State ACKsent

Sep 23 11:09:49.634 DST: BR0/0/0:2 LCP: O CONFREQ [ACKsent] id 241 len 15

Sep 23 11:09:49.634 DST: BR0/0/0:2 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:09:49.634 DST: BR0/0/0:2 LCP:    MagicNumber 0x286DEA35 (0x0506286DEA35)

Sep 23 11:09:51.642 DST: BR0/0/0:2 LCP: I CONFREQ [ACKsent] id 160 len 10

Sep 23 11:09:51.642 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:51.642 DST: BR0/0/0:2 LCP: O CONFACK [ACKsent] id 160 len 10

Sep 23 11:09:51.642 DST: BR0/0/0:2 LCP:    MagicNumber 0x2C1AD4D9 (0x05062C1AD4D9)

Sep 23 11:09:51.650 DST: BR0/0/0:2 LCP: Timeout: State ACKsent

Sep 23 11:09:51.650 DST: BR0/0/0:2 LCP: O CONFREQ [ACKsent] id 242 len 15

Sep 23 11:09:51.650 DST: BR0/0/0:2 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:09:51.650 DST: BR0/0/0:2 LCP:    MagicNumber 0x286DEA35 (0x0506286DEA35)

Sep 23 11:09:53.666 DST: BR0/0/0:2 LCP: Timeout: State ACKsent

Sep 23 11:09:53.666 DST: BR0/0/0:2 LCP: State is Listen

Sep 23 11:09:53.666 DST: ISDN BR0/0/0 EVENT: UserIdle: callid 0x30D received ISDN_HANGUP (0x1)

Sep 23 11:09:53.666 DST: ISDN BR0/0/0 EVENT: isdn_hangup: Hangup call to call id 0x030D ces = 1

Sep 23 11:09:53.666 DST: %ISDN-6-DISCONNECT: Interface BRI0/0/0:2  disconnected from 12345679 , call lasted 20 seconds

Sep 23 11:09:53.774 DST: ISDN BR0/0/0 EVENT: process_rxstate: ces/callid 1/0x30D calltype 1 HOST_DISCONNECT_ACK

Sep 23 11:09:53.774 DST: %LINK-3-UPDOWN: Interface BRI0/0/0:2, changed state to down

Sep 23 11:09:53.778 DST: BR0/0/0:2 PPP: Sending Acct Event[Down] id[315]

Sep 23 11:09:53.778 DST: BR0/0/0:2 LCP: State is Closed

Sep 23 11:09:53.778 DST: BR0/0/0:2 PPP: Phase is DOWN

Sep 23 11:10:51.063 DST: ISDN BR0/0/0 EVENT: process_rxstate: ces/callid 1/0x30E calltype 1 HOST_INCOMING_CALL

Sep 23 11:10:51.063 DST: ISDN BR0/0/0 EVENT: host_incoming_call: call_id 0x030E, Guid = 05E9A05E83ED bchan 0

Sep 23 11:10:51.063 DST: ISDN BR0/0/0 EVENT: UserIdle: callid 0x30E received ACCEPT_CALL (0x13)

Sep 23 11:10:51.063 DST: %LINK-3-UPDOWN: Interface BRI0/0/0:1, changed state to up

Sep 23 11:10:51.063 DST: %ISDN-6-CONNECT: Interface BRI0/0/0:1 is now connected to 12345679 N/A

Sep 23 11:10:51.071 DST: BR0/0/0:1 PPP: Using dialer call direction

Sep 23 11:10:51.071 DST: BR0/0/0:1 PPP: Treating connection as a callin

Sep 23 11:10:51.071 DST: BR0/0/0:1 PPP: Session handle[CE00031E] Session id[777]

Sep 23 11:10:51.071 DST: BR0/0/0:1 PPP: Phase is ESTABLISHING, Passive Open

Sep 23 11:10:51.071 DST: BR0/0/0:1 LCP: State is Listen

Sep 23 11:10:51.227 DST: ISDN BR0/0/0 EVENT: process_rxstate: ces/callid 1/0x30E calltype 1 HOST_CONNECT

Sep 23 11:10:51.323 DST: BR0/0/0:1 LCP: I CONFREQ [Listen] id 161 len 10

Sep 23 11:10:51.323 DST: BR0/0/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:10:51.323 DST: BR0/0/0:1 LCP: O CONFREQ [Listen] id 106 len 15

Sep 23 11:10:55.331 DST: BR0/0/0:1 LCP: O CONFREQ [ACKsent] id 108 len 15

Sep 23 11:10:55.331 DST: BR0/0/0:1 LCP:    AuthProto CHAP (0x0305C22305)

Sep 23 11:10:55.331 DST: BR0/0/0:1 LCP:    MagicNumber 0x286F1A31 (0x0506286F1A31)

Sep 23 11:10:57.339 DST: BR0/0/0:1 LCP: I CONFREQ [ACKsent] id 164 len 10

Sep 23 11:10:57.339 DST: BR0/0/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:10:57.339 DST: BR0/0/0:1 LCP: O CONFACK [ACKsent] id 164 len 10

Sep 23 11:10:57.339 DST: BR0/0/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:10:57.347 DST: BR0/0/0:1 LCP: Timeout: State ACKsent

Sep 23 11:11:01.371 DST: BR0/0/0:1 LCP: I CONFREQ [ACKsent] id 166 len 10

Sep 23 11:11:01.371 DST: BR0/0/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:11:01.371 DST: BR0/0/0:1 LCP: O CONFACK [ACKsent] id 166 len 10

Sep 23 11:11:01.371 DST: BR0/0/0:1 LCP:    MagicNumber 0x2C1C04F5 (0x05062C1C04F5)

Sep 23 11:11:01.379 DST: BR0/0/0:1 LCP: Timeout: State ACKsent

[Richard Burts · Accepted solution]

I believe that I see one issue in the branch config which involves the static route. You have this:

ip route 0.0.0.0 0.0.0.0 10.10.202.6

But the address it uses as the next hop is the address of the interface on the router. I believe that it would work better if you had this:

ip route 0.0.0.0 0.0.0.0 10.10.202.5

But I do not believe that this is the biggest problem. It would only affect you when the call was established and data was ready to flow. And you are not to that point yet. As I look at the debugs the first thing that I notice is that the branch keeps sending CONFREQ and getting no response from HQ. (BR0/3/0:1 LCP: Timeout: State REQsent) But looking at the debug frm HQ it is trying to send responses (BR0/0/0:2 LCP: O CONFACK ). So something is preventing the response from HQ getting to the branch.

My first suggestion would be to get your ISDN provider to check the connection on both ends and see if there is any problem that prevents HQ from sending or prevents the branch from receiving.

HTH

Rick

[arun.mathew]

Hi Rick,

Sorry for the delay in reply.

issue is some configuration mistake from ISP and it was very difficult to make them understand this.

as you mentioned, LCP messages are are not getting properly exchanged between the HO and branch. I have this fixed with one site and another pending with ISP.

Thanks,

Arun

[Richard Burts]

Arun

Thanks for posting back and confirming that my analysis pointed to the issue. I am glad that one site is fixed and hope the other will soon be done.

HTH

Rick

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