It would be terrific if PCs could join a network without tinkering with the
TCP/IP control panel. It would be similar to the AppleTalk design of 1984!
;-) Anyway, I think I've proven my point that the hotel network will
require quite a bit of ingenious design beyond just depending on Proxy ARP.
Do let us know what you discover about the Marriott hotel network! Don't do
too much hacking now.
I installed an Apple 802.11 Airport access point in a Starbucks that is
connected to a high-speed MAN via a cable modem. Customers come in with
their laptops and get on the net no problem. But the instructions for what
they have to do on their PCs is a page long. One of the gotchas is the
annoying issue with TCP/IP being bound to an Ethernet card instead of the
wireless card. This may not be an issue with newer OSs than Win 98. The
other annoying thing with Win 98 is the need to reboot with every little
change to the TCP/IP control panel.
The list of instructions for Macintoshes, by the way, is only 1/2 a page. ;-)
Priscilla
At 02:29 AM 5/26/01, Jason Roysdon wrote:
>But say it could magically use proxy arp for nodes not on it's subnet (say
>you had software that was sniffing the line and would add that subnet). To
>answer Priscilla's question: They've got to do (P)NAT for all those
>addresses anyway, since even if it was a public or private address, it
>wouldn't get routed back to the hotel.
>
>Of course, if the software could add any network it saw in use internally,
>Priscilla couldn't get to her public subnet (since it would have added that
>network to it's inside interface). You could even purposely/accidentally
>"blackhole" sites by doing this, which is all the more reason it's not
>likely.
>
>No doubt hotels are just using DHCP, or maybe even giving out statics to
>track who is one what. For LA Networkers I'm staying at a Marriott with
>in-room CAIS internet access, so I'll be able to tell one way or another.
>You'd better believe I'll bring my new Sniffer as well and I'll be hacking
>the thing. No doubt they use some sort of vlan setup (default vlan gets you
>dhcp and net access just to the hotel pay website, once you pay up you get
>moved to the vlan with real access).
>
>Oh, and I'm going to bring a Cache Engine and Aironet 340 access point, so
>anyone nearby can have free internet access on me (costs me like $10/night,
>but the company is paying for it). As the hotel is already completely
>booked and it was reserved by Cisco, I'm guessing there may be a fair amount
>of folks with 802.11 NICs.
>
>$(%$%(#$ my router just crashed again, hehee. Silly me, I should just stop
>trying to do an Offline Sync with IE with this CE507 proxying for me:
>
>falcon#sh mem
> Head Total(b) Used(b) Free(b) Lowest(b)
>Largest(b)
>Processor 80FA04D8 7732008 7138812 593196 305376
>358784
> I/O 1700000 1048644 694056 354588 354588
>354012
>
>
>
>falcon#
>May 25 19:26:13.573 PDT: %SYS-2-MALLOCFAIL: Memory allocation of 152 bytes
>failed from 0x8
>00FA964, pool Processor, alignment 0
>-Process= "IP Input", ipl= 4, pid= 29
>-Traceback= 800F83B8 800FA0B0 800FA968 8085CFFC 8085D784 80858034 808575A4
>80856B3C 802350
>FC 80233738 80233938 80233A94 8011A09Csh mem
> Head Total(b) Used(b) Free(b) Lowest(b)
>Largest(b)
>Processor 80FA04D8 7732008 7676276 55732 10832
>32728
> I/O 1700000 1048644 694056 354588 354588
>354012
>
>
>
>--
>Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+
>List email: [EMAIL PROTECTED]
>Homepage: http://jason.artoo.net/
________________________
Priscilla Oppenheimer
http://www.priscilla.com
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=6039&t=5664
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