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625
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Routing via AUX port

WabukiSensei
Level 1
Level 1

I have a dial-up modem connected to my router's AUX port.

Using this setup, I need to get remote users to access our internal servers via dial-up.

The users aren't network admins, so they should not have exec access to the routers. They only need to be able to access the servers on our system, i.e. I need to route their Laptops's traffic via the aux port to the intended server.

Is there a way of configuring the router and modem to do this? Or do I need more equipment in order for this to work?

The router is a 2960 series and the modem is a US Robotics dial up modem.

Any help is greatly appreciated. Thanks!

1 Accepted Solution

Accepted Solutions

For diarect dial connection, there should not be a lot of difference - the AUX port should run PPP automatically and as long as the PC recognises this it should negotiate and connect.

View solution in original post

6 Replies 6

paolo bevilacqua
Hall of Fame
Hall of Fame

Yes, configure ppp for the aux and dial-in. Performances won;t be stellar, but it works.

Hi, thanks for the tip, but I thought you can't configure ppp on AUX ports?

These configs are a bit old and crusty , but they should give you an idea on how to set up async routing on the AUX ports. As Paolo says , performance is not brilliant, but it will work ... The chat scripts would likely need to be modified to suit your particular modems -

#####DIALING SIDE############

username PRIROUTER password SAMEPASSWORDS

chat-script modem "" "atdt\T" TIMEOUT 60 CONNECT \c

chat-script rstusr "" "at&fs0=1e0&r2&d2&c1&b1&h1&m4&k1q0" "OK"

!

interface Async1

ip address 192.168.10.2 255.255.255.0

encapsulation ppp

async default routing

async mode interactive

dialer in-band

dialer string 5553731

dialer-group 1

ppp authentication chap

!

ip route 0.0.0.0 0.0.0.0 Async1

!

dialer-list 1 protocol ip permit

!

line aux 0

modem InOut

script reset rstusr

transport input all

flowcontrol hardware

script dialer modem

######RECEIVING SIDE##############

Username RouterA password cisco

!

interface Async1

ip address 192.168.10.1 255.255.255.0

encapsulation ppp

async default routing

async mode dedicated

dialer in-band

dialer-group 1

ppp authentication chap

!

ip route 0.0.0.0 0.0.0.0 async1

!

dialer-list 1 protocol ip permit

!

chat-script rstusr "" "at&fs0=1e0&r2&d2&c1&b1&h1&m4&k1q0" "OK"

!

line aux 0

modem InOut

script reset rstusr

transport input all

flowcontrol hardware

Hi, Thanks for the tip. If I were dialing from a Laptop connected to a modem, would there be any differences in the configuration?

Thanks.

For diarect dial connection, there should not be a lot of difference - the AUX port should run PPP automatically and as long as the PC recognises this it should negotiate and connect.

Thanks for the tip, guys. I've finally been able to get this run-down modem to work.

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