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494
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6
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5
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Async Line help pls?

imran_mcse
Level 1
Level 1

I have 2522 router and a 3Com US robotics 56K message modem V.90. I want to use it for connectivity with ISP through dial-up. I have connected modem on serial 7(a/s) and configure router via config maker. But router is not dialing modem. I think that modem paramters r not properly set by config maker. So pls brothers is there any thing special i have to do to solve this problem or pls tell me that how can i attach above specified modem model no. with my router. Pls tell the configurations.I m in urgent. Thanx in advance.

5 Replies 5

tepatel
Cisco Employee
Cisco Employee

Pl. post the running config from 2522 here. Actually config on 2522 should look very similar to config at following link

http://www.cisco.com/en/US/partner/tech/tk801/tk36/technologies_configuration_example09186a0080094579.shtml

Above url has config for aux port dialout to ISP. In your case only line number and ip addresses should be different. Just configure chat-script, interface async x, line x, and interesting traffic properly.

If it still doesn't work, we need to see config with following debug

debug chat

debug modem

debug dialer

debug ppp negotiation

term mon

brother this site is not being opened. It require full access CCO login i think. As it is not accepting my login pls give me other link which i can access.

makchitale
Level 6
Level 6

Firstly ensure that we are configuring the correct line to which the modem is connected. The basic configuration for dialout is as follows:

Conf term

interface Async x

ip address negotiated

encapsulation ppp

dialer in-band

dialer idle-timeout 600

dialer string xxxx (phone number required to dial the ISP)

dialer-group 1

Depending whether the ISP is doing PAP or CHAP authentication add following under interface asyn x

ppp authentication chap callin

ppp chap hostname

ppp chap password

OR

ppp authentication pap callin

ppp pap sent-username password

exit

dialer-list 1 protocol IP permit

line x

modem inout

transport in all

flow hardware

Also reverse telnet into the USR modem & add the following init string with dip switches 3 & 8 down rest up.

At&f1s0=1&c1&d2&a1&w

Thanks, Mak

dritanulqinaku
Level 1
Level 1

I don't know if this doc will help you but there are some instrustion about the configuration.

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