RE: PIX 515e and ISA 2000 (I know, I know)

  • From: "Thor (Hammer of God)" <Thor@xxxxxxxxxxxxxxx>
  • To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx>
  • Date: Thu, 9 Mar 2006 09:21:50 -0800

I've heard Comcast use that exact definition a number of times, actually. They call "static" anything that is not "dynamic" even if DHCP assigns it. I guess to them they would never have a customer with a "true static," read- "manually entered" so when you pay for a persistent IP, they call the entry "static" even though it is based on a reservation.

To me, you have:
DHCP - get whateva you're doled.
DHCP Reservation - you get the same IP address each time, but it is still via DHCP
Static - you go to the machine and enter the IP info yo'self.


t


On Mar 9, 2006, at 9:05 AM, Jim Harrison wrote:

http://www.ISAserver.org

Can I try?

"Static IP Address" == DHCP reservation
"True Static IP Address" = manually entered at the machine


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


-----Original Message----- From: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] Sent: Thursday, March 09, 2006 07:14 To: [ISAserver.org Discussion List] Subject: [isalist] RE: PIX 515e and ISA 2000 (I know, I know)

http://www.ISAserver.org

OK, this should be fun.

What *is* the difference between a static IP address and a "true" static IP address?

(this should be good)

Tom

Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://blogs.isaserver.org/shinder/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls



-----Original Message-----
From: Amy Babinchak [mailto:amy@xxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Thursday, March 09, 2006 9:00 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: PIX 515e and ISA 2000 (I know, I know)

http://www.ISAserver.org

That's the rub, isn't it? Knowing your ISP. A lot of small businesses
have an ISP on the fringe of "home" service, like Yahoo or Cable. You
can't throw them very far.

On the of trusting your ISP, I had a Comcast tech explain the
difference between a static IP and a true static IP to me Monday. Any
guesses?

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: Thomas W Shinder [mailto:tshinder@xxxxxxxxxxx] Sent: Thursday, March 09, 2006 9:51 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: PIX 515e and ISA 2000 (I know, I know)

http://www.ISAserver.org

I actually use forwarders, since my ISP is competant and I know the
details of their configuration and management. But if you don't know,
then don't use them, beause there's a good chance the ISP isn't
managing its DNS well.

Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://blogs.isaserver.org/shinder/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls



-----Original Message-----
From: Amy Babinchak [mailto:amy@xxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Thursday, March 09, 2006 6:49 AM
To: [ISAserver.org Discussion List]
Subject: [isalist] RE: PIX 515e and ISA 2000 (I know, I know)

http://www.ISAserver.org

If that's an SBS reference, although the docs tell you to use
forwarders it actually works better without them.

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: Steve Moffat [mailto:steve@xxxxxxxxxx] Sent: Wednesday, March 08, 2006 1:28 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: PIX 515e and ISA 2000 (I know, I know)

http://www.ISAserver.org

 Do not use forwarders. Remove the forwarders, that is most likely
your issue. Create a rule to allow your internal DNS servers to
query the internet and your troubles will likely disappear.

If you don't believe me, try it for a day or two. There is
no need nor
requirement to use dns forwarders...unless...your internal domain
isn't a .local is it?

S

-----Original Message-----
From: cdx47 [mailto:extra_net@xxxxxxxxxxx]
Sent: Wednesday, March 08, 2006 11:26 AM
To: ISA Mailing List
Subject: [isalist] RE: PIX 515e and ISA 2000 (I know, I know)

http://www.ISAserver.org

Yes I am Steve. Im using my local DNS server on my internal NIC with
no DNS on my external (well with the problems Ive been having
today, Ive
added an external DNS to my external but that is not my normal
setup). I think I will read through the article Tom linked for me
and see if I can find out what is going on.

Thanks.
Aare you using DNS forwarders on any of your internal dns
servers?=20

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