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тАО10-11-2002 02:47 PM
тАО10-11-2002 02:47 PM
Computers refuse to access the Internet
The cable modem is directly connected to the my laptop via a USB Ethernet adapter. So at the moment, the laptop is playing host.
When I check connectivity through the ping command, the desktop computer can get responses from the NIC from the laptop and the USB Ethernet adapter all fine and dandy.
HOWEVER, when the desktop tries to ping the default gateway of the USB adapter or any domain name on the Internet, the requests always timeout. =|
I've tried making the Win2K computer as the host but the same thing happens.
It seems like whichever computer is being the host kills any packets the client computer tries to send to the Internet.
Other info:
- Internet sharing IS on on the laptop/host.
- the workgroup names are correct
- I've configured static IPs for the desktop and laptop with NetBIOS enabled.
- The USB adapter connected to the is set to automatically obtain IP and DNS with the default NetBIOS setting.
I know it really shouldn't be this difficult to get the Internet to work on both machines but it seems like ever since I reinstalled Windows XP on the laptop, trying to get Internet Sharing to work has become a big pain.
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тАО10-11-2002 02:50 PM
тАО10-11-2002 02:50 PM
Re: Computers refuse to access the Internet
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тАО10-14-2002 08:10 AM
тАО10-14-2002 08:10 AM
Re: Computers refuse to access the Internet
For more help look out this ms article: http://www.microsoft.com/windows2000/en/server/help/default.asp?url=/WINDOWS2000/en/server/help/HowTo_share_conn.htm
best regards
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тАО10-14-2002 09:20 AM
тАО10-14-2002 09:20 AM
Re: Computers refuse to access the Internet
Your host PC has to perform Network Address Translation (NAT) on the public addresses in order to get them to work on the Internet. NAT replaces the invalid source address with a valid registered IP address - in your case that assigned by your cable modem (which may be doing NAT too so you might not really have a valid address but double NAT is also possible tho not very nice). It is possible that NAT is working. XP being fairly simple minded probably assumes that the addresses given out by its own DHCP server are the only ones which need NAT. If you have assigned your own static IP's and they are not in the DHCP server's range then they are probably being sent out without NAT. I believe MS is fond of using 192.168.0.1 as the address of the host that has the internet connection. You should have an address on 192.168.0.2 mask 255.255.255.0 default gateway of 192.168.0.1 on your client or let it pick up the ip address with DHCP. Make sure that you do not have another default gateway address assigned on your client.
On the host the default gateway should point to the cable modem. Do not fill in a gateway on the NIC which goes to the client.
Since XP is NT based I assume you can check your connections with the command ipconfig /all
.
http://www.practicallynetworked.com/sharing/xp_ics/
One final possible problem. Since you are using static addresses you may not have the correct DNS servers set. You can copy the ones being used by the host and use them on the client.
Ron
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тАО10-14-2002 09:30 AM
тАО10-14-2002 09:30 AM
Re: Computers refuse to access the Internet
I exited the program and the desktop computer was able to access the Internet.
The thing is, I WANT to keep Zone Alarm up on the laptop (as it's directly connected to the cable modem), but I can't figure out how to allow the Windows 2K machine out onto the Internet while it's up. =/
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тАО10-17-2002 07:40 AM
тАО10-17-2002 07:40 AM
Re: Computers refuse to access the Internet
Make sure your have your local network checked. You may need to add the other computer to the list.
Then on Zone Alarm: Security:
If it still doesn't work then try moving the left slider down to low.
Ron