Yes, and do an atdt5551212 to dial-out...pretty cool stuff (see below).

I setup some 3640's a while back as out-of-band management for a client's
different data center locations.  It was a bit "over-engineered" (read: $$,
see my note on WICs below) but highly-available - thus would provide
connectivity in almost any foreseeable outage.

Really quick, there were three sites, each with redundant L2 backbone
segments.  Each 3640 had a dual-port Ethernet - one connecting to each
backbone segment, the 8-port analog modem card and a 32-port async module.

I configured a loopback interface and advertised it into EIGRP (denying
everything else of course, so the term-server didn't become a transit path);
and pointed DNS at the loopback interfaces.

I had the electricians wire-up some "back-to-back" patch panels so I could
take the octopus cables from the A/S module and plug them in one side and
use regular patch cables from the other side to the managed device.  (I've
since seen a company that sells a patch panel with a "scsi" cable out the
back to connect to the A/S port - a more elegant solution).

I convinced the phone guys to give me a few analog lines to connect to each
term svr and was in business.

For added flair, I setup an autocommand menu system so when people connected
(via Telnet or modem) they would be given a menu that simplified the reverse
telnet process.  Throw in a little TACACS for good measure.

What I thought was really sweet (getting back to the original topic) - I
took one of my extra "data" ports at my desk and connected my roll-over
cable to it.  I patched back through the structured cabling to the console
port on the Term Svrs in the location I worked so I could have full-time
connectivity OOB to all network gear in my location thus permanently
avoiding the "laptop drag."

In addition, I was able to dial out through the Analog Modem card to the
Term Svrs in the other locations as well as any of the remote routers in the
field (~200).  This was really helpful for remote support from home. :)

The thing I didn't like about it was that it didn't come in a smaller
package.  What I'd really like to see is a WIC adapter that was a 1 or
2-port analog modem or better yet, make the AUX port on the access-level
routers an analog modem capable - it can't cost that much.  I obviously
didn't need eight analog ports for each router on this project but at the
time (late 2000) that was what I had to work with.  If WICs were an option,
I would have been able to do this same thing with 2600's - huge cost
difference vs. the 3640's!

Anyway, have fun.

Ben

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
NetEng
Sent: Friday, January 18, 2002 1:34 PM
To: [EMAIL PROTECTED]
Subject: reverse-telnet info [7:32518]


Is it possible to do reverse-telnet with an 8-AM card?




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=32526&t=32518
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

Reply via email to