thats why we put in wireless in all our buildings..moving around is no problem...
Priscilla Oppenheimer wrote: >Darrell Newcomb wrote: > >>Because pre-W2K windows didn't automatically try to renew a >>lease when the >>ethernet interface comes back up after being down. So...if the >>old lease >>hadn't come up for renewal during the time the machine moved >>from point A to >>B.....the users don't automatically get connectivity. >> > >Plus with laptops, the user expects to not have to reboot. They may just >move from building to building without shutting down the laptop. It might go >to sleep, but you should just be able to hit a button and keep working. It >seems like a reasonable user expectation, but alas, we as networkers haven't >done a good job in this area. (at least with IP) > >The technical issue is that the user is in a different subnet and needs a >new IP address and default gateway after moving to a new building, location, >whatever. > >Priscilla > >>Lots of options to teach the helpdesk how to educate >>users....but since it >>'worked before' in Chuck's case it's seen as a (big?) >>problem(PITA). >> >>""Larry Letterman"" wrote in message >>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >> >>>why is that ? we have segmented avvid network across our >>> >>campus. The >> >>>laptops are all W2K and they work just >>>fine without any issues on DHCP...The routers are all running >>> >>hsrp and >> >>>work correctly.. >>> >>>Chuck's Long Road wrote: >>> >>>>I see I should have made this one a "Friday Folly" :-> >>>> >>>>In a Big Flat Bridged Network, a mobile user unplugs the >>>> >>laptop at one >> >>>>office, drives over to the next office, plugs back in, and >>>> >>no further >>action >> >>>>is required. The Windoze PC has retained it's IP address, >>>> >>and the network >> >>>>doesn't care about location, because it is one big flat >>>> >>network. >> >>>>However, in the brand new ATM based AVVID ready routed >>>> >>network, said >>mobile >> >>>>user is now in a different segment in each location. With >>>> >>Windoze, you >>have >> >>>>to manually intervene. Sometimes you have to release the IP >>>> >>address, >>reload >> >>>>the computer, and then get your new DHCP assignment. Users >>>> >>don't like >>this. >> >>>>After all, now they have to do something, whereas before >>>> >>they did not. >>Never >> >>>>mind the higher speed, the failover capability of the >>>> >>routers, the new >>100 >> >>>>mbs switches rather than 10mbs. They have to take an extra >>>> >>step or two in >> >>>>order to log in. >>>> >>>>This is normal behaviour for Windoze machines, and maybe for >>>> >>DHCP clients >>in >> >>>>general. I have had to do this release / renew for years. >>>> >>>>But to the customer, who is pretty naive in terms of >>>> >>networking, there is >>a >> >>>>"problem" that was caused by the new routers. To the users, >>>> >>there is a >> >>>>problem that never existed before. >>>> >>>>Like I said, serves me right. You give a customer a great >>>> >>new network, >>and >> >>>>you break something so rudimentary that it never would have >>>> >>occurred >> >>>>otherwise. :-> >>>> >>>>-- >>>> >>>>www.chuckslongroad.info >>>>like my web site? >>>>take the survey! >>>> >>>> >>>> >>>>""Priscilla Oppenheimer"" wrote in message >>>>[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >>>> >>>>>Spare us the mystery and tell us what you're getting at. >>>>> >>:-) Did you >> >>>>forget >>>> >>>>>to tell the DHCP server to provide the correct default >>>>> >>gateway address >>to >> >>>>>the PCs? That's my guess, since you say everything else >>>>> >>like helper >> >>>>>addresses, etc. is configured correctly. Just a late-night >>>>> >>theory, >> >>>>waiting >>>> >>>>>for Jay Leno to come on..... >>>>> >>>>>Thanks, >>>>> >>>>>Priscilla >>>>> >>>>>Chuck's Long Road wrote: >>>>> >>>>>>The AVVID solution I sold a few months ago is gong through >>>>>>implementation. >>>>>>This project has been problematic for a lot of reasons, so >>>>>> >>it >> >>>>>>is not unusual >>>>>>for a round of e-mails from the customer complaining about >>>>>> >>one >> >>>>>>thing or >>>>>>another. >>>>>> >>>>>>Today was a good one, however. Shows to go you have to ask >>>>>>things you >>>>>>normally wouldn't think about. >>>>>> >>>>>>DHCP - no big deal. Works fine. All of us have probably >>>>>> >>used it >> >>>>>>or >>>>>>configured it. All of us probably have experience with >>>>>> >>running >> >>>>>>several small >>>>>>sites off a single DHCP server at a central site. >>>>>> >>>>>>So why is the customer complaining about DHCP not working, >>>>>> >>and >> >>>>>>it's because >>>>>>our routers are screwed up and Microsoft told them that >>>>>> >>they >> >>>>>>would have to >>>>>>change their network addressing to a single class B rather >>>>>> >>than >> >>>>>>subnets of >>>>>>/16 space, the way I designed it? >>>>>> >>>>>>The routers are configured correctly. The network is >>>>>> >>designed >> >>>>>>correctly - no >>>>>>overlapping subnets. IP helpering is configured correctly. >>>>>> >>>>>>Problem occurs with several users, different NIC's, either >>>>>>Win2K or WinXP. >>>>>>No one common factor. Worked just fine before we put the >>>>>> >>new >> >>>>>>routers in. >>>>>> >>>>>>Recognizing that Microsoft is full of C**P and their TCP >>>>>> >>stack >> >>>>>>is S**T, >>>>>>still, why the problem. >>>>>> >>>>>>Gee, what happens to DHCP when you go from a single flat >>>>>>bridged network to >>>>>>a segmented routed network? Especially to mobile users, who >>>>>>travel from site >>>>>>to site for various reasons on a regular basis? >>>>>> >>>>>>Serves me right >>>>>> >>>>>>Chuck >>>>>> >>>>>>-- >>>>>> >>>>>>www.chuckslongroad.info >>>>>>like my web site? >>>>>>take the survey! >>>>>> >>>-- >>> >>>Larry Letterman >>>Network Engineer >>>Cisco Systems Inc. -- Larry Letterman Network Engineer Cisco Systems Inc. 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