Help with Access Server

thehourman

I just received my 2511 and Octal cable.
I already reset the 2511 config. So far what I have int the running-config are these:

conf t
hostname ACCESS_SERVER
enable secret cisco
line vty 0 4
password cisco
login
logging synchronous
exec-timeout 0 0
exit
line con 0
password cisco
login
logging synchronous
exec-timeout 0 0
exit

After that I have no idea how to setup an access server for my lab.
Can someone help me with this step by step?
Also can I use the two serial interface on 2511 for my lab too?

Thanks

rc51boss

This should help.

Cisco Lab How To Configure An Access Server

thehourman

Thanks for the link. Now I have my AS running.
Can you explain to me what these commands for:
no exec
no ip directed-broadcast
no ip mroute-cache

Also, how do I make an IOS backup of my 2511? There is no ethernet or fast ethernet port.

notgoing2fail

thehourman wrote: »

Thanks for the link. Now I have my AS running.
Can you explain to me what these commands for:
no exec
no ip directed-broadcast
no ip mroute-cache

Also, how do I make an IOS backup of my 2511? There is no ethernet or fast ethernet port.

I don't think you really need the last 2 commands.

I can't remember exactly but I think the no exec has something to do with your connections not having to idle out...so you can connect again.

You mean you didn't order a AUI transceiever??

What you'll have to do is create a point to point with another router through your serial ports. HDLC or something, doesn't matter.

Assuming the other router has ethernet you can then have the TFTP server on that side so you can save your config....

thehourman

No, I did not buy the AUI transceiver.
That is what I thought after I posted my question. That is what I am going to do use my other router to copy the IOS of my 2511. I paid $178(S/H was included) for it.

Can I use the AS to act as another router in my lab? Because it does have 2 serial interface and I don't want to waste those two.

peanutnoggin

thehourman wrote: »

Can I use the AS to act as another router in my lab? Because it does have 2 serial interface and I don't want to waste those two.

Absolutely... you'll need DTE/DCE cable(s) to connect them back-to-back with another serial interface. Shouldn't be a problem.

-Peanut

thehourman

So process of using my AS as part of my lab would be the same as my other routers. So it will act as AS and a regular router.
Cool.

Now, I need to buy a 10' USB extension, so that I can use my desktop instead of my netbook.

tiersten

thehourman wrote: »

Now, I need to buy a 10' USB extension, so that I can use my desktop instead of my netbook.

You know that you can telnet into the 2511 on port 2001 to 2016 and it'll connect you to the various lines right? You don't just use the 2511 as an extremely large and heavy serial switch box via the console.

notgoing2fail

thehourman wrote: »

So process of using my AS as part of my lab would be the same as my other routers. So it will act as AS and a regular router.
Cool.

Now, I need to buy a 10' USB extension, so that I can use my desktop instead of my netbook.

I've seen most guys here likes to keep their AS separate from routing duties but that's just preference. It is a full fledged router, albeit an old one, but nonetheless use for all its worth!

tiersten

thehourman wrote: »

no exec

Stops IOS from running exec on that line. Exec is what gives you the login prompt and you don't want the 2511 to think that the output from your connected devices are attempts at logging in. If it tries to "log in" too many times in a time period then the 2511 will think the port is defective and disable it for a while.

thehourman wrote: »

no ip directed-broadcast

It prevents a certain kind of DDoS attack. It isn't necessary to disable in a lab environment but it is best practise to do so anyway.

thehourman wrote: »

no ip mroute-cache

Turns off fast switching for multicast. Not essential again for a lab.

thehourman wrote: »

Also, how do I make an IOS backup of my 2511? There is no ethernet or fast ethernet port.

3 options in order of preference

1. Buy an AUI transceiver so you can just connect to the 2511 directly
2. Use one of the sync serial ports to connect to another router which does have ethernet
3. Transfer it off using XMODEM over the console port. Remember to increase the baud rate temporarily before doing this otherwise you'll grow old doing it.

thehourman

Thanks guys

notgoing2fail

tiersten wrote: »

3. Transfer it off using XMODEM over the console port. Remember to increase the baud rate temporarily before doing this otherwise you'll grow old doing it.

I tried this awhile back with my older 2900XL switches, and going from 9600 baud to 115200 is a lot faster. I highly recommened everyone do this if they have to go this route... the other way took very very long...I ended up watching a movie....