Dialing in to a 2520 using a external modem

[admin_2]

I have a 2520 which I am trying to configure with a external analogue US Robotics modem, to allow me to dial in and connect to my network from a dum terminal. I have the modem connected to serial 3, but each time I try to dial in the modem just ring and dose no answer.

Can anyone help.

Thanks

Neil

version 11.2

no service password-encryption

no service udp-small-servers

no service tcp-small-servers

!

hostname test

!

username platn password 0 platn

ip subnet-zero

!

interface Ethernet0

ip address 10.0.80.1 255.255.0.0

!

interface Serial0

no ip address

!

interface Serial1

no ip address

!

interface BRI0

no ip address

!

interface Group-Async1

physical-layer async

ip unnumbered Ethernet0

encapsulation ppp

async mode interactive

peer default ip address pool modem_pool

no cdp enable

ppp authentication chap

group-range 2 3

!

ip local pool Modem_Pool 10.80.0.1 10.80.0.2

no ip classless

!

line 2 3

autoselect during-login

autoselect ppp

login local

modem InOut

transport input all

flowcontrol hardware

!

end

[giedriusa]

Hi,

You are missing the following lines under Your line 2 3 configuration:

modem autoconfigure discovery

transport preferred none

transport output none

speed 38400

HTH

Regards

Giedrius

[#3]

Giedrius

Thanks for you response I have added the line and I still have the same problem.

Neil

[giedriusa]

Neil

what is output of command show line 2 or show line 3 ?

You should see something similar:

Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int

I 114 TTY - inout - - - 1 0 0/0 -

Line 114, Location: "", Type: ""

Length: 24 lines, Width: 80 columns

Status: No Exit Banner, Modem Detected, CTS Raised

Capabilities: No Flush-at-Activation, Hardware Flowcontrol In

Hardware Flowcontrol Out, Modem Callout, Modem RI is CD,

Line usable as async interface, Hangup on Last Close,

Modem Autoconfigure, , Integrated ModemLinenumber Not Suppressed

Modem state: Idle

modem(slot/port):3/17, csm_state:IDLE_STATE,

bchan_num:-1 csm_status(0): CSM_STATUS_UNLOCKED

Group codes: 0

Modem hardware state: CTS noDSR DTR RTS

TCP/IP header compression enabled

RTP/UDP/IP header compression enabled, Modem Configured

Special Chars: Escape Hold Stop Start Disconnect Activation

^^x none - - none

Timeouts: Idle EXEC Idle Session Modem Answer Session Dispatch

00:10:00 never none not set

Idle Session Disconnect Warning

never

Login-sequence User Response

00:00:30

Autoselect Initial Wait

not set

Modem type is mica.

Session limit is not set.

Time since activation: never

Editing is enabled.

History is enabled, history size is 10.

DNS resolution in show commands is enabled

Full user help is disabled

Allowed input transports are lat pad v120 lapb-ta mop telnet rlogin udptn nasi.

Allowed output transports are none.

Preferred transport is none.

No output characters are padded

No special data dispatching characters

Giedrius

[#5]

Giedrius

The output from Sh line 2 is below, I noticed that on your sh line you have Status: No Exit Banner, Modem Detected, CTS Raised where as my sh line has Status: No Exit Banner dose this indicate that the cable may be at fault ?

Neil

Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns

I 2 TTY 38400/38400 - inout - - - 0 0 0/0

Line 2, Location: "", Type: ""

Length: 24 lines, Width: 80 columns

Baud rate (TX/RX) is 38400/38400, no parity, 1 stopbits, 8 databits

Status: No Exit Banner

Capabilities: Hardware Flowcontrol In, Hardware Flowcontrol Out

Modem Callout, Modem RI is CD, Line usable as async interface

Modem Discovery

Modem state: Idle

Modem hardware state: noCTS noDSR DTR RTS

Special Chars: Escape Hold Stop Start Disconnect Activation

^^x none - - none

Timeouts: Idle EXEC Idle Session Modem Answer Session Dispatch

00:10:00 never none not set

Idle Session Disconnect Warning

never

Modem type is unknown.

Session limit is not set.

Time since activation: never

Editing is enabled.

History is enabled, history size is 10.

DNS resolution in show commands is enabled

Full user help is disabled

Allowed transports are none. Preferred is none.

No output characters are padded

No special data dispatching characters

[giedriusa]

Neil,

as You can see here,

Modem hardware state: noCTS noDSR DTR RTS

Modem type is unknown

Your modem is not detected and configured by the router, thats why it is not answering Your calls.

You either have faulty or incorrect cable, faulty modem or there is a speed mismatch between modem and Your router.

HTH

Regards

Giedrius

[#7]

Giedrius,

Thanks for all your help.

The problem was down to a faulty cable between the modem and router.

Thanks again

Neil