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Learning by Doing: CISCO Certified Network ... - SCN Research

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3. Configure the router to receive incoming calls.<br />

Router(config)#line aux 0 (or line 65)<br />

Router(config-line)#login<br />

Router(config-line)#password auxpass<br />

Router(config-line)#speed 115200<br />

Router(config-line)#flowcontrol hardware<br />

Router(config-line)#stopbits 1<br />

Router(config-line)#transport input all<br />

Router(config-line)#modem inout<br />

Router(config-line)#modem autoconfigure discovery<br />

The last line will attempt to discover your modem type automatically. Probably not<br />

needed but nice to have.<br />

4. To troubleshoot a connection use “debug modem” on the router and establish the<br />

connection.<br />

5. On the PC dial into the router using Hyperterminal. You will be prompted for a<br />

password. If you are successful then you should see the user mode prompt.<br />

6. You may want to have a message appear when someone accesses your router. Some<br />

people are very friendly and make a banner like:<br />

“Welcome to the ABC network.”<br />

Wrong answer recruit…a banner like this is like a welcome mat being thrown out.<br />

In fact a case where a “defendant” hacked into a router was thrown out because<br />

the administrator had a banner like the one above. In short, don’t welcome me in,<br />

if I am not supposed to be there. You will probably want to make one more like:<br />

“WARNING: Authorized admittance only. Unauthorized entrance will be<br />

prosecuted to the fullest extent of the law.”<br />

Or something like that…if you have a corporate lawyer then have them come up<br />

with one…they live for that stuff.<br />

7. So let’s get <strong>by</strong> the legal mumbo-jumbo and put up a login banner. You have many<br />

different ways to do this…let’s find out…<br />

Router#banner ?<br />

You should see:<br />

LINE c banner-text c, where ‘c’ is a delimiting character<br />

Exec set EXEC process creation banner<br />

Incoming set incoming terminal line banner<br />

Login set login banner<br />

Motd Set message of the day banner<br />

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