ip address negotiated

[msbassols]

Hi

I?m trying to use a free internet acces via ISDN of my provider but i can?t no get IP address from it and the call goes down inmediatelly.

I?ve performed the command "ip address negotiated" in the bri0 interface but i think that is not enough because when i perform the command sh ip int brief, i get the folowing:

PLADELAERMITA#sh ip int brief

Interface IP-Address OK? Method Status Prot

ocol

FastEthernet0 unassigned YES unset administratively down down

BRI0 unassigned YES manual up up

BRI0:1 unassigned YES unset down down

BRI0:2 unassigned YES unset down dow

Note that the METHOD field says "manual"

and when the system run and i can get ip addres from my provider, in this field appairs other method, no remember exactly what.

Anyone can help me?

Thank you very much

[desai.jaideep]

Hi

Pls give us the whole config. of the router.

Regards

JD

[msbassols]

Of course, attached you can find the router config and debug ppp negotiation and authentication

note that the router is factory rebooted for avoid old bad commands and only configurated for run with bri0 for internet access.

[desai.jaideep]

Hi

Instead of Repeat count 1, can u give repeat count 100? and then give us the output?

yourname#ping

Protocol [ip]:

Target IP address: 66.102.9.104

Repeat count [5]: 100

Datagram size [100]:

Timeout in seconds [2]:

Extended commands [n]:

Sweep range of sizes [n]:

Regards

JD

[msbassols]

Here you are the new output

Additional info:

1- isdn, TR1 and cable between tr1 and router has been chacked today by the provider technician and was ok and error free.

2- Note that sometimes the call try by bri0:2

Regards

[desai.jaideep · Accepted solution]

Hi

Can u try the following config:

interface Dialer 1

ip address negotiated

ip nat outside

no ip split-horizon

encapsulation ppp

dialer in-band

dialer idle-timeout 120

dialer string 908250250

dialer hold-queue 10

dialer-group 1

ppp authentication chap pap callin

ppp chap hostname tu@eresmas

ppp chap password gratis

ppp pap sent-username tu@eresmas password gratis

ppp multilink

interface BRI 0

no shutdown

no ip address

dialer rotary-group 1

access-list 1 permit 192.168.1.0 0.0.0.255

dialer-list 1 protocol ip permit

ip nat inside source list 1 interface Dialer 1 overload

Regards

JD

[msbassols]

SUCCESS!!!

yourname#ping 66.102.9.104

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 66.102.9.104, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 84/87/88 ms

I?m surprised, i don?t no why a week ago it ran fine with the config attached before. Maybe something has changed in provider...

I hope can keep this config with route map suggested by you in my first post called "nat with 2 interfaces"

Thank you very much again for your valuable help

Miquel

[desai.jaideep]

Hi

Nice 2 know its working.

Sure you can.There is slight deviation from above config. in that.Hope you can do it yourself.

Regards

JD