From: Jeff.Kline@xxxxxxxxxxxxxxx
Date: Tue Apr 24 2001 - 13:27:01 GMT-3
Bob, I did my remote access the same way Erick B. talks about, except I used
the 1-port Linksys cable router. I know you mention using just your
existing hardware, but these little boxes are so inexpensive and they are a
decent firewall. Plus, they run RIP (v1 & v2) so you can possibly even work
it into some basic lab setup that involves getting RIP routes from a router
out of your control. I know, a little limited, but... What I did was
configure the Linksys to forward my Telnet ports to the E0 of my 2511, which
I am using as my access server. On E0, I set up an extended ACL to permit
only my 'trusted' traffic. The 2511 has a default route for my work subnet
to the Linksys. Been working great for me.
-Jeff
-----Original Message-----
From: Bob Dixon [mailto:bobdixon@mediaone.net]
Sent: Monday, April 23, 2001 10:20 PM
To: ccielab@groupstudy.com
Subject: OT - accessing home lab via the internet
Guys,
Need some help from those of you that have setup Internet access to your
home
labs (for telnetting in while you're at work, etc). Please keep in mind that
I
am trying to do this with only the equipment described below. In other
words,
it would be easy to do what I am trying to do if I had a router with 2
ethernet interfaces, but I don't.
Scenario:
I have a stack of equip that I access via a 2509 whose 8 async cables are
connected to the console of each device. I have cable modem access and have
been successful at getting the e0 on the 2509 to get an IP via DHCP (my
provider offers only dhcp; no static ip). This is accomplished with the
command "ip address dhcp" available on IOS 12.1(2)T.
The pc that I use at home is addressed as 10.0.0.3/24 and I setup a
secondary
ip address on the 2509's e0 as 10.0.0.1/24. Now the tough part. I need to
configure NAT so that I can access the internet via the 2509. I also need
the
2509's e0 to keep getting it's primary ip via dhcp so that I can telnet in
from work. I can get everything to work except that I can't get access to
the
Internet now from my pc. "debug ip nat" output seems to indicate that the
router is not doing NAT for the 10.0.0.3/24, but it is doing NAT for
10.0.0.1/24.
Questions:
1. Can you use NAT to create translations between 2 ip addresses that are
configured on the same interface?
2. Is there an easier way to do this with existing equipment and/or PC
software that I am overlooking?
Thanks,
Bob
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