At 01:05 PM 10/30/00, Chuck Larrieu wrote:
>The disadvantages I can think of for wireless are:
>
>1. It's pretty slow (< 11 Mbps shared bandwidth)
>2. Mobile wireless is fraught with issues. How do you get a new IP address
>when you move from subnet to subnet? (Of course, that's not too
>straightforward on wired either, come to think of it.)
>
>
>CL: three words - DHCP DHCP DHCP :->
OK, that's a good point. &;-) What I had in mind was getting a new IP
address as you walk around a building or between buildings, without
rebooting. I guess you would only do this with a wireless computer, though!
When you enter the realm of a new subnet, you need a new address and
default router. There are ways of handling this, but I would still put this
in the realm of disadvantages for wirless. The methods for getting a new IP
address for a roaming wireless device are complex and not as well-tested as
DHCP.
Cisco's method of handling this is called Mobile IP.
A "home address" is assigned for an extended time to a mobile node. It
remains unchanged regardless of where the node is.
A "home agent" router on a mobile node's home network tunnels packets to
the mobile node while it is away from home.
A "foreign agent" router on a mobile node's visited network provides
routing services to the mobile node. The foreign agent detunnels and
delivers datagrams to the mobile node that were tunneled by the mobile
node's home agent. For datagrams sent by a mobile node, the foreign agent
may serve as a default router for registered mobile nodes.
For more info on this cool topic, see
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t1/mobileip.htm
Priscilla
> >************************************************************************
> >Brad Stanfield
> >Network/Integration Engineer
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> >
> >-----Original Message-----
> >From: Michael Linehan [mailto:[EMAIL PROTECTED]]
> >Sent: Monday, October 30, 2000 10:32 AM
> >To: CiscoStudyGroup
> >Subject: OT: Wireless LANS
> >
> >
> >As a member of the local chapter of the NPA (Network Professional
> >Association) I have been tasked with an interesting assignment. I need
> >to make the following argument:
> >
> >Anyone who uses a wired network today is stupid! or Anyone who doesn't
> >use a wireless LAN is stupid! (take your pick)
> >
> >This is of course all in fun. I of course want to do as good a job as
> >possible so my question is this.....
> >
> >If you had to make the argument that wireless is the only way to go for
> >local area networking what would you say??
> >
> >_________________________________
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>
>
>________________________
>
>Priscilla Oppenheimer
>http://www.priscilla.com
>
>_________________________________
>FAQ, list archives, and subscription info:
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________________________
Priscilla Oppenheimer
http://www.priscilla.com
_________________________________
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