A Brainfart.... ?????
My experience is DHCP will always get those brainfart somewhere.
The book says, Static = More management & more stable
DHCP= Easier management & less stable
I know, DHCP works but has it's issue... However I did knot know it
could get Windows to brainfart.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Homer Parker
Sent: Wednesday, October 22, 2003 12:56 AM
To: [EMAIL PROTECTED]
Subject: Re: [smartBridges] Clients can't DHCP
On Wed, 22 Oct 2003 01:25:32 +0100
"Brian Winter" <[EMAIL PROTECTED]> wrote:
> Hi,
> Now I'm sure my earlier reply is relevant
>
> > Ok, after watching Windows reboot for 30 minutes, here's what I have
> found:
> Sorry if this is granny/eggs (or maybe I'm missing something) but you
> can use ipconfig /renew to get a new lease or simply
disable/enable
> network connection
Not my experience when changing IPs on a desktop.. Laptop I just
eject and put the card back in.. Well, till Windows has a brainfart, and
then it needs a restart.. My testing is behind my firewall... I've
assigned 10.x.x.x to the SB units, and the DHCP server is handing out
192.x.x.x.. Your saying I can skip the reboot after changing from static
to DHCP assigned?
>
> > 1) The only way to the ABO is if I'm in the same net block as it is
> (that's the reason for all the reboots).
> Thats true but the client PC does not need to be able to see the ABO,
> only the dhcp server on the wired network, and your gateway. You can
> have the ABO static in one subnet (192.168.100.nnn), and the client
> getting its IP info from the dhcp server on another (192.168.50.nnn).
> As far as I can tell, you only really need to see your AB's and other
> sB kit from the single PC required to manage them - give that pc two
> (fixed) IP addresses, one in each subnet (worked for me).
Vmware and creative routing will handle that once I get this
setup implemented ;)
> > 2) I still have not got the DHCP response back through the ABO.
> Sounds like the dhcp server is not responding "correctly" for the AB
> to pass the lease on to the client pc. Described in my last mail
Let me describe my layuot again:
dhcp server - switch - appo (backhaul) appo - switch - appo - abo
At the second switch I can see the DHCP server response coming
back to the client.. I can at the first as well, but I did check it on
the second to make sure it's getting through..
>
> > 3) I stuck an Orinoco silver in my laptop, and got the DHCP
> > response. Went
> surfing just fine.
> .... and not passing through an AB to get a dhcp lease ??
Correct.. It attached to the last APPO in the above diagram
directly.. Worked fine..
>
>
> > 4) Orinoco cards are not good for sniffing wireless traffic :( (I'm
> > using
> Ethereal in Linux) Some recommendations are needed.
> For this investigation you can see the relevant traffic on your wired
> network near to the dhcp server. Close Ethereal right down to see
> just dhcp traffic. If you are getting what I described you will see
> several retries at getting a lease (say 12+ messages total). When you
> achieve a successful lease you will see only about 4 messages if I
> remember correctly - and the world will be a wonderful place once more
> :)
Right.. I'm seeing the request and the offer on both switches,
and it makes it through the last APPO to the Orinoco radio..
You said something in another post that I might be not
understanding correctly, but after reading the FAQ you pointed to I
understand it to be saying that I set the ABO to DHCP and it hands the
IP of to the PC.. I'm waiting on everything to boot back up now and will
try that..
---
Homer Parker
LAN/WAN, Wireless Networking, PC Sales/Service
Linux, OS/2 and Windows Support
PC Services 785.483.7602
129 W 8th #101 [EMAIL PROTECTED]
Russell, KS 67665 http://www.pcsrvc.com
"So for the IT Manager Role, you want someone who's absolute crap, looks
reasonable on paper, and won't cause too much trouble. ... Well I don't
have any MCSEs on my books at the moment, but I could call around."
-- Simon Travaglia
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