Re: Think outside the GUI challenge #1

  • From: "Jim Harrison" <Jim@xxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Wed, 28 Dec 2005 12:48:19 -0800

..but of course you have, oh Diva of SBS fame.

The marketroids call them "routers".
Sometimes they're part of the modem; sometimes not.
Sometimes they're configured for NAT, sometimes not.
When it's not NAT-ing, it's acting like a hub (bridge).

In this case, the only interesting part is that the device is configured as a 
bridge.

--------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
--------------------------------------------

-----Original Message-----
From: Amy Babinchak [mailto:amy@xxxxxxxxxxxxxxxxxxxxxxxxxx] 
Sent: Wednesday, December 28, 2005 12:37 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Think outside the GUI challenge #1

http://www.ISAserver.org

What's a DSL bridge? I've never run into one of those in small business land.

Amy
 
Harbor Computer Services
Small Business Computer Specialists
 
Client Blog: http://smalltechnotes.blogspot.com/
Tech Blog: http://isainsbs.blogspot.com/
Website: http://www.harborcomputerservices.net/
 

 
-----Original Message-----
From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx] 
Sent: Wednesday, December 28, 2005 3:10 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Think outside the GUI challenge #1

http://www.ISAserver.org

Oooo..k.

Jeff gets step #1.
For those of us not "netsh-aware", the full command would be (assuming you 
named the external interface "north"):
 - netsh int ip add addr north 10.0.0.1 255.255.255.0

Alexandre gets "most sickliest response". :-p

To continue the challenge, answer the following questions:
1. why doesn't it work yet?
2. what non-GUI step must be taken to make it work?

..remember; ISA policies are not interesting yet.

--------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
--------------------------------------------

-----Original Message-----
From: Alexandre Gauthier [mailto:gauthiera@xxxxxxxxxxxxxxxxx] 
Sent: Wednesday, December 28, 2005 12:01 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Think outside the GUI challenge #1

http://www.ISAserver.org

Your answer makes me moist in my special places.

-----Message d'origine-----
De : Bunting, Jeff [mailto:BUNTING@xxxxxxxxxxxx] 
Envoyé : 28 décembre 2005 14:58
À : [ISAserver.org Discussion List]
Objet : [isalist] Re: Think outside the GUI challenge #1

http://www.ISAserver.org

how about with
netsh interface ip add address  

Jeff

-----Original Message-----
From: Jim Harrison [mailto:Jim@xxxxxxxxxxxx] 
Sent: Wednesday, December 28, 2005 2:29 PM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Think outside the GUI challenge #1

http://www.ISAserver.org

Remember; this is the "out of the GUI" challenge.
How would you accomplish item 1 from the command line?

Also, it still won't work (incomplete).
What other non-ISA, non-GUI steps must be taken?

#2 answered correctly.

--------------------------------------------
Jim Harrison
MCP(NT4, W2K), A+, Network+, PCG
http://isaserver.org/Jim_Harrison/
http://isatools.org
Read the help / books / articles!
--------------------------------------------

-----Original Message-----
From: Roy Tsao [mailto:roy_tsao@xxxxxxxxxxxx]
Sent: Wednesday, December 28, 2005 11:07 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] Re: Think outside the GUI challenge #1

http://www.ISAserver.org


1) Bind a additional static IP 10.0.0.X/24 to ISA External Interface
2) In case of dynamic IP, static IP can't assign as per 1)


> Merry Xmas & Happy New Year!
> 
> In the spirit of giving, here's a "think outside the GUI" challenge
for
> you.
>  
> Scenario:
> - ISA is connected directly to the Internet via a "manageable" DSL 
> bridge
> - ISA uses 123.123.123.123/24 static external IP; DG = 123.123.123.1
> - Internal LAN uses 10.9.8.x/24
> - DSL bridge has unchangeable 10.0.0.2/24 internal IP
> - DSL bridge offers web-based management on that internal IP
> 
>       Internet
>          |
>       DSL Bridge
>          |- 10.0.0.2/24
>          |- 123.123.123.123/24
>         ISA
>          |- 10.9.8.x/24
>         LAN
> 
> Note:
> - The DSL bridge internal IP is irrelevant to normal Internet access.
> Because it's operating in "bridge" (as opposed to NAT) mode, it's 
> effectively transparent to the ISA for Internet traffic.
> 
> Challenges:
> 1. Allow either ISA-local or ISA-internal to access the DSL bridge web 
> interface 2. Explain why the correct solution is impossible to 
> implement if the ISP provides a dynamic IP.
> 
> Hint:
> - The core of the solution has nothing whatsoever to do with ISA
itself.
> 
> --------------------------------------------
> Jim Harrison
> MCP(NT4, W2K), A+, Network+, PCG
> http://isaserver.org/Jim_Harrison/
> http://isatools.org
> Read the help / books / articles!
> --------------------------------------------
> 
> 
> All mail to and from this domain is GFI-scanned.

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