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Weird TCP/IP ProblemsIP information over DHCP from a Linksys Wireless G router. Two computers are wired, two are wireless. Simple enough? I can only ping other computers by using IP addresses (ping 192.168.1.10). If I type [ ping laptop ], I get this response: --------------------------------- Pinging laptop.domain_not_set.invalid [208.67.219.40] with 32 bytes of data: Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 --------------------------------- That is not my laptop's IP address. And I have no idea where 207.67.219.40 is, but it's not in my house that I know of. And what does "domain_not_set.invalid" mean? And what's with the latency of almost 100ms if it's in my house? I don't get what's causing this. BUT -- I can open up Run and type "\\laptop" and I get a folder listing of shares that are on my laptop. Why can Windows resolve \\laptop but not ping laptop? Is this a problem with my router or computers (all four of them?!) or just a setting? - Skeene =?Utf-8?B?U2hhd24gS2VlbmU=?= <ShawnKe***@discussions.microsoft.com>
Show quoteHide quote wrote in news:474A57F4-411C-4E8A-9CBD-92214EE0A868@microsoft.com: None of the above. It works this way by design (i.e. this is the way > I have four computers on my netork, all on the same workgroup, who > get their IP information over DHCP from a Linksys Wireless G > router. Two computers are wired, two are wireless. Simple > enough? > > I can only ping other computers by using IP addresses (ping > 192.168.1.10). If I type [ ping laptop ], I get this response: > > --------------------------------- > Pinging laptop.domain_not_set.invalid [208.67.219.40] with 32 > bytes of data: Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > --------------------------------- > > That is not my laptop's IP address. And I have no idea where > 207.67.219.40 is, but it's not in my house that I know of. And > what does "domain_not_set.invalid" mean? And what's with the > latency of almost 100ms if it's in my house? > > I don't get what's causing this. > > BUT -- I can open up Run and type "\\laptop" and I get a folder > listing of shares that are on my laptop. Why can Windows resolve > \\laptop but not ping laptop? > > Is this a problem with my router or computers (all four of them?!) > or just a setting? it's supposed to work). The problem is that you are confusing Windows Networking (NetBT = NetBios over TCP/IP) with TCP/IP addressing. Names prefixed with "\\" are interpreted to be Windows Networking devices and are discovered on the network using NetBT protocol (usually by network broadcasting in a small home network). Microsoft networking devices are usually located with a combination of Broadcasting, lookups in WINS servers, and entries in the "lmhosts" file. As a last resort, it can use DNS servers. The "ping" routine takes as its argument a TCP/IP address (not a NetBT address). TCP/IP addresses are resolved using a DNS server or by entries in your "hosts" file. Local devices on the LAN side of your router will [generally] not be found via DNS. Rather than using "ping laptop" to see if a your device is on your subnet, try using "nbtstat -a laptop". HTH, John That seems to find the remote machine just fine. But I used to be able to
remote desktop to other machines in my home by just typing the computer name into the Terminal Server Client (Remote Desktop Connection in XP). Now it only works if I specifify an IP address, and it's not easy to assign a static IP adress to a laptop because it usually needs to be dynamic in public places. Show quoteHide quote "John Wunderlich" wrote: > =?Utf-8?B?U2hhd24gS2VlbmU=?= <ShawnKe***@discussions.microsoft.com> > wrote in news:474A57F4-411C-4E8A-9CBD-92214EE0A868@microsoft.com: > > > I have four computers on my netork, all on the same workgroup, who > > get their IP information over DHCP from a Linksys Wireless G > > router. Two computers are wired, two are wireless. Simple > > enough? > > > > I can only ping other computers by using IP addresses (ping > > 192.168.1.10). If I type [ ping laptop ], I get this response: > > > > --------------------------------- > > Pinging laptop.domain_not_set.invalid [208.67.219.40] with 32 > > bytes of data: Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > > Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > > Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > > Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > > --------------------------------- > > > > That is not my laptop's IP address. And I have no idea where > > 207.67.219.40 is, but it's not in my house that I know of. And > > what does "domain_not_set.invalid" mean? And what's with the > > latency of almost 100ms if it's in my house? > > > > I don't get what's causing this. > > > > BUT -- I can open up Run and type "\\laptop" and I get a folder > > listing of shares that are on my laptop. Why can Windows resolve > > \\laptop but not ping laptop? > > > > Is this a problem with my router or computers (all four of them?!) > > or just a setting? > > None of the above. It works this way by design (i.e. this is the way > it's supposed to work). The problem is that you are confusing > Windows Networking (NetBT = NetBios over TCP/IP) with TCP/IP > addressing. > > Names prefixed with "\\" are interpreted to be Windows Networking > devices and are discovered on the network using NetBT protocol > (usually by network broadcasting in a small home network). Microsoft > networking devices are usually located with a combination of > Broadcasting, lookups in WINS servers, and entries in the "lmhosts" > file. As a last resort, it can use DNS servers. > > The "ping" routine takes as its argument a TCP/IP address (not a > NetBT address). TCP/IP addresses are resolved using a DNS server or > by entries in your "hosts" file. Local devices on the LAN side of > your router will [generally] not be found via DNS. > > Rather than using "ping laptop" to see if a your device is on your > subnet, try using "nbtstat -a laptop". > > HTH, > John > My crystal ball tells me that you are using OpenDNS as a DNS server
(actually, 208.67.219.40 is one of their server addresses). I am seeing exactly analogous bizarre behaviour, having recently changed to using OpenDNS, and have not had a reply to my query to them about it. It is screwing me up because one of the systems on my local network can no longer find my mail server (on another local system), because its address is now being returned as 208...... Please post back here if you find a solution elsewhere. On Sat, 11 Nov 2006 17:58:01 -0800, Shawn Keene <ShawnKe***@discussions.microsoft.com> wrote: Show quoteHide quote >I have four computers on my netork, all on the same workgroup, who get their Please respond to the Newsgroup, so that others may benefit from the exchange.>IP information over DHCP from a Linksys Wireless G router. Two computers are >wired, two are wireless. Simple enough? > >I can only ping other computers by using IP addresses (ping 192.168.1.10). >If I type [ ping laptop ], I get this response: > >--------------------------------- >Pinging laptop.domain_not_set.invalid [208.67.219.40] with 32 bytes of data: >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 >--------------------------------- > >That is not my laptop's IP address. And I have no idea where 207.67.219.40 >is, but it's not in my house that I know of. And what does >"domain_not_set.invalid" mean? And what's with the latency of almost 100ms >if it's in my house? > >I don't get what's causing this. > >BUT -- I can open up Run and type "\\laptop" and I get a folder listing of >shares that are on my laptop. Why can Windows resolve \\laptop but not ping >laptop? > >Is this a problem with my router or computers (all four of them?!) or just a >setting? > > > - Skeene Peter R. Fletcher Wow. Just wow.
Why does changing the DNS Server my router uses to lookup domain names screw up my computer from resolving computer names on a simple home network? I'm no network guy, but I think that maybe that shouldn't happen. - skeene Show quoteHide quote "Peter R. Fletcher" wrote: > My crystal ball tells me that you are using OpenDNS as a DNS server > (actually, 208.67.219.40 is one of their server addresses). I am > seeing exactly analogous bizarre behaviour, having recently changed to > using OpenDNS, and have not had a reply to my query to them about it. > It is screwing me up because one of the systems on my local network > can no longer find my mail server (on another local system), because > its address is now being returned as 208...... Please post back here > if you find a solution elsewhere. > > > On Sat, 11 Nov 2006 17:58:01 -0800, Shawn Keene > <ShawnKe***@discussions.microsoft.com> wrote: > > >I have four computers on my netork, all on the same workgroup, who get their > >IP information over DHCP from a Linksys Wireless G router. Two computers are > >wired, two are wireless. Simple enough? > > > >I can only ping other computers by using IP addresses (ping 192.168.1.10). > >If I type [ ping laptop ], I get this response: > > > >--------------------------------- > >Pinging laptop.domain_not_set.invalid [208.67.219.40] with 32 bytes of data: > >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > >--------------------------------- > > > >That is not my laptop's IP address. And I have no idea where 207.67.219.40 > >is, but it's not in my house that I know of. And what does > >"domain_not_set.invalid" mean? And what's with the latency of almost 100ms > >if it's in my house? > > > >I don't get what's causing this. > > > >BUT -- I can open up Run and type "\\laptop" and I get a folder listing of > >shares that are on my laptop. Why can Windows resolve \\laptop but not ping > >laptop? > > > >Is this a problem with my router or computers (all four of them?!) or just a > >setting? > > > > > > - Skeene > > Please respond to the Newsgroup, so that others may benefit from the exchange. > Peter R. Fletcher > I now have a fix for the problem from the OpenDNS folks - my first
message to them must have got lost, since they replied to a second within 12 hours - this is much more typical of their usual level of support, BTW. Basically, you need to create an account for yourself on the OpenDNS site, register your IP address (they call it registering your network), and turn off "typo correction" for it. I imagine that they will be working on providing a less wholesale solution to what must (IMHO) be a bug in the typo correction code. If you have a dynamic address, there is a little bit more to it - email me at "pfletch<at>fletchers<hyphen>uk.com" (editing spam traps appropriately) if you have problems with the rather sketchy instructions on the OpenDNS site. On Mon, 13 Nov 2006 02:23:01 -0800, Shawn Keene <ShawnKe***@discussions.microsoft.com> wrote: Show quoteHide quote >Wow. Just wow. Please respond to the Newsgroup, so that others may benefit from the exchange.> >Why does changing the DNS Server my router uses to lookup domain names screw >up my computer from resolving computer names on a simple home network? > >I'm no network guy, but I think that maybe that shouldn't happen. > > - skeene > > > > >"Peter R. Fletcher" wrote: > >> My crystal ball tells me that you are using OpenDNS as a DNS server >> (actually, 208.67.219.40 is one of their server addresses). I am >> seeing exactly analogous bizarre behaviour, having recently changed to >> using OpenDNS, and have not had a reply to my query to them about it. >> It is screwing me up because one of the systems on my local network >> can no longer find my mail server (on another local system), because >> its address is now being returned as 208...... Please post back here >> if you find a solution elsewhere. >> >> >> On Sat, 11 Nov 2006 17:58:01 -0800, Shawn Keene >> <ShawnKe***@discussions.microsoft.com> wrote: >> >> >I have four computers on my netork, all on the same workgroup, who get their >> >IP information over DHCP from a Linksys Wireless G router. Two computers are >> >wired, two are wireless. Simple enough? >> > >> >I can only ping other computers by using IP addresses (ping 192.168.1.10). >> >If I type [ ping laptop ], I get this response: >> > >> >--------------------------------- >> >Pinging laptop.domain_not_set.invalid [208.67.219.40] with 32 bytes of data: >> >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 >> >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 >> >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 >> >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 >> >--------------------------------- >> > >> >That is not my laptop's IP address. And I have no idea where 207.67.219.40 >> >is, but it's not in my house that I know of. And what does >> >"domain_not_set.invalid" mean? And what's with the latency of almost 100ms >> >if it's in my house? >> > >> >I don't get what's causing this. >> > >> >BUT -- I can open up Run and type "\\laptop" and I get a folder listing of >> >shares that are on my laptop. Why can Windows resolve \\laptop but not ping >> >laptop? >> > >> >Is this a problem with my router or computers (all four of them?!) or just a >> >setting? >> > >> > >> > - Skeene >> >> Please respond to the Newsgroup, so that others may benefit from the exchange. >> Peter R. Fletcher >> Peter R. Fletcher I am on a dynamic IP from my DSL provider. My router (Linksys) supports
updating a DynDNS host name for me, whch I've used for years to make it easier to host files on a simple FTP server I set up and to Remote-Desktop to my home without knowing what my IP is, so I'm familiar with most of that. Now I'm trying to install "inadyn", which is the updating client that opendns recommends, onto my Windows 2000 Server (yes it's actually a server, but being used as a workstation) as a service, but I've gotten a little lost. Is this something you're familar with? I think I know the command line syntax to execute the utility and have it perform a single update, but I'd rather it runs as a service so it can recover after something like a power failure or run while no one's logged in. - skeene (I think this is getting outside the realm of this newsgroup). Show quoteHide quote "Peter R. Fletcher" wrote: > I now have a fix for the problem from the OpenDNS folks - my first > message to them must have got lost, since they replied to a second > within 12 hours - this is much more typical of their usual level of > support, BTW. > > Basically, you need to create an account for yourself on the OpenDNS > site, register your IP address (they call it registering your > network), and turn off "typo correction" for it. I imagine that they > will be working on providing a less wholesale solution to what must > (IMHO) be a bug in the typo correction code. If you have a dynamic > address, there is a little bit more to it - email me at > "pfletch<at>fletchers<hyphen>uk.com" (editing spam traps > appropriately) if you have problems with the rather sketchy > instructions on the OpenDNS site. > > On Mon, 13 Nov 2006 02:23:01 -0800, Shawn Keene > <ShawnKe***@discussions.microsoft.com> wrote: > > >Wow. Just wow. > > > >Why does changing the DNS Server my router uses to lookup domain names screw > >up my computer from resolving computer names on a simple home network? > > > >I'm no network guy, but I think that maybe that shouldn't happen. > > > > - skeene > > > > > > > > > >"Peter R. Fletcher" wrote: > > > >> My crystal ball tells me that you are using OpenDNS as a DNS server > >> (actually, 208.67.219.40 is one of their server addresses). I am > >> seeing exactly analogous bizarre behaviour, having recently changed to > >> using OpenDNS, and have not had a reply to my query to them about it. > >> It is screwing me up because one of the systems on my local network > >> can no longer find my mail server (on another local system), because > >> its address is now being returned as 208...... Please post back here > >> if you find a solution elsewhere. > >> > >> > >> On Sat, 11 Nov 2006 17:58:01 -0800, Shawn Keene > >> <ShawnKe***@discussions.microsoft.com> wrote: > >> > >> >I have four computers on my netork, all on the same workgroup, who get their > >> >IP information over DHCP from a Linksys Wireless G router. Two computers are > >> >wired, two are wireless. Simple enough? > >> > > >> >I can only ping other computers by using IP addresses (ping 192.168.1.10). > >> >If I type [ ping laptop ], I get this response: > >> > > >> >--------------------------------- > >> >Pinging laptop.domain_not_set.invalid [208.67.219.40] with 32 bytes of data: > >> >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > >> >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > >> >Reply from 208.67.219.40: bytes=32 time=97ms TTL=47 > >> >Reply from 208.67.219.40: bytes=32 time=96ms TTL=47 > >> >--------------------------------- > >> > > >> >That is not my laptop's IP address. And I have no idea where 207.67.219.40 > >> >is, but it's not in my house that I know of. And what does > >> >"domain_not_set.invalid" mean? And what's with the latency of almost 100ms > >> >if it's in my house? > >> > > >> >I don't get what's causing this. > >> > > >> >BUT -- I can open up Run and type "\\laptop" and I get a folder listing of > >> >shares that are on my laptop. Why can Windows resolve \\laptop but not ping > >> >laptop? > >> > > >> >Is this a problem with my router or computers (all four of them?!) or just a > >> >setting? > >> > > >> > > >> > - Skeene > >> > >> Please respond to the Newsgroup, so that others may benefit from the exchange. > >> Peter R. Fletcher > >> > > Please respond to the Newsgroup, so that others may benefit from the exchange. > Peter R. Fletcher > I do now have inadyn installed as a service. The difficulties you have
obviously encountered will have arisen at least partly from the instructions in the readme file assuming that you have downloaded and unpacked the full distribution from inadyn's home site, rather than the minimal package from the OpenDNS site. The latter only suffices if you just want to run the program from the command line. Proceed as follows: 1) Go to http://inadyn.ina-tech.net/readme.html and download the version 1.96 executables for Windows. Unzip the contents of the package into a directory on your hard disk. Note that the version of inadyn.exe in this package _won't_ work with OpenDNS (it doesn't support a secure connection), so you should delete it - it's some of the installation files that you need. 2) As instructed in the readme file, download the Windows files intsrv.exe and srvany.exe into the Win32 subdirectory in your new inadyn directory - both files are available at the http://www.electrasoft.com/srvany/srvany.htm location. 3) The inadyn people provide template .reg files for dyndns and freedns. Neither they nor the OpenDNS folks provide one for OpenDNS, but I have written one. Cut the lines at the end of this message, paste into a file called (e.g.) OpenDNS.reg, remove any extra <CR>s added by the news client, and edit it to insert your OpenDNS user name and password and the full path to the (V1.97) inadyn.exe file which you got from the OpenDNS site.. 4) Double-click on your new .reg file and confirm that you want to modify the Registry. 5) Double-click on the install_inadyn_service.bat file to run it. The inadyn service should now be installed and configured. If you use the appropriate Server 2000 applet to view your services, you can check that it is set to run automatically and start it (which will only be necessary this time). Once it is running, check the log fille (which corresponds to standard output on the command line version) to ensure that there were no errors. Good Luck! {reg file template] REGEDIT4 ; This is a template file without personal information [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\inadyn\Parameters] ; Edit the next line to show the full path to the inadyn.exe V1.97 ; executable file. Note that any backslashes "\" in the path must be ; _doubled_ "\\" "Application"="D:\\inadyn\\inadyn.exe" ; Edit the next line to replace "username" and "password" with your ; OpenDNS user name and password. The "--alias" string is arbitrary, ; and is really only relevant to more complex setups. ; N.B. what follows should be on a _single_ line "AppParameters"="--background --dyndns_server_name updates.opendns.com --dyndns_server_url /account/ddns.php? --secure -u username -p password --update_period 60000 --alias test.opendns.net --log_file inadyn_srv.log" [/reg file template] On Tue, 14 Nov 2006 12:45:01 -0800, Shawn Keene <ShawnKe***@discussions.microsoft.com> wrote: Show quoteHide quote >I am on a dynamic IP from my DSL provider. My router (Linksys) supports Please respond to the Newsgroup, so that others may benefit from the exchange.>updating a DynDNS host name for me, whch I've used for years to make it >easier to host files on a simple FTP server I set up and to Remote-Desktop to >my home without knowing what my IP is, so I'm familiar with most of that. > >Now I'm trying to install "inadyn", which is the updating client that >opendns recommends, onto my Windows 2000 Server (yes it's actually a server, >but being used as a workstation) as a service, but I've gotten a little lost. > >Is this something you're familar with? I think I know the command line >syntax to execute the utility and have it perform a single update, but I'd >rather it runs as a service so it can recover after something like a power >failure or run while no one's logged in. > > > - skeene >(I think this is getting outside the realm of this newsgroup). > Peter R. Fletcher 
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