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Re: new IPCONFIG reading, from router?

Subject: Re: new IPCONFIG reading, from router?
From: Eddy
Date: Fri, 08 Feb 2008 08:57:55 GMT
Newsgroups: uk.comp.home-networking

PeeGee wrote:

> Eddy wrote:
> > Guys,
> > 
> > Are we on to something here?  As follows:
> > 
> > 1.  I deleted the Realtek Ethernet from the "Network Connections"
> > section in "Device Manager", then switched everything off, unplugged my
> > USB dial-up modem, plugged in the router, then switched on the computer,
> > and then ran IPCONFIG, and got the following:
> 
> You could have done a refresh by selecting the computer entry at the top 
> (David), right click and scan for changes. I couldn't find the refresh 
> button either - I wonder if that was Win98?
> 
> > 
> > C:\>ipconfig /all | more
> > Windows IP Configuration
> > 
> >         Host Name . . . . . . . . . . . . : DAVID
> >         Primary Dns Suffix  . . . . . . . :
> >         Node Type . . . . . . . . . . . . : Unknown
> >         IP Routing Enabled. . . . . . . . : No
> >         WINS Proxy Enabled. . . . . . . . : No
> > 
> > Ethernet adapter Local Area Connection 7:
> > 
> >         Connection-specific DNS Suffix  . :
> >         Description . . . . . . . . . . . : 
> >                 Realtek RTL8139 Family PCI Fast Ethernet NIC #2
> >         Physical Address. . . . . . . . . : 00-0B-6A-B3-C7-9B
> >         Dhcp Enabled. . . . . . . . . . . : Yes
> >         Autoconfiguration Enabled . . . . : Yes
> >         Autoconfiguration IP Address. . . : 169.254.237.180
> >         Subnet Mask . . . . . . . . . . . : 255.255.0.0
> >         Default Gateway . . . . . . . . . :
> > 
> > What do you make of the above, guys?
> 
> That looks better, but though Dhcp is enabled, the computer is not 
> getting an address from the router and windows is assigning a "Microsoft 
> automatic private" address. You should, probably, have a 192.168.0.x 
> address with 255.255.255.0 mask. (You can check this in your laptop).
> 
> If you go to network connections and open the properties for the 
> connection, then the properties for the "internet protocol", there 
> should be two tabs. The first should have automatic set for dhcp and 
> dns. Select the "alternate configuration" tab and you can set a 
> fall-back fixed address for the interface.
> 
> The default gateway is the router address, as is the DNS usually (the 
> laptop data will give you these - use the wired connection, though). The 
> netmask will normally be 255.255.255.0 (unless you have changed it - 
> it's in the laptop data) and you can set an IP address with the first 
> three numbers the same as the router and the fourth one any value 
> (preferably in the middle if the range, say 128) but not: the one used 
> by the router, the ones used by the laptop (wireless and wired may be 
> different), 0 or 255 (the last two are reserved).
> 
> If the dhcp request fails, the computer will use the specified address 
> instead, which is valid for the network. If implemented correctly, dhcp 
> will not issue an address if it is already in use (it should check first 
> by trying to get a response from the address it is about to issue). This 
> can get screwed by Windows firewall blocking responses :-(
> 
> You should then be able to browse the router to get the configuration 
> pages, including checking the dhcp services, even if the address does 
> not come from dhcp. IPCONFIG will show that by the address the computer 
> is using.
> 
> > 
> > By the way, once the computer booted up, it replaced the "Local Area
> > Connection 3" in the Network Connections windows/folder with "Local Area
> > Connection 7", stating that this new connection was using the Realtek.
> > 
> > Anyway, here are some other things I have noticed that you guys may see
> > something in:
> > 
> > 2.  In the Network Connections window/folder, I right-clicked "Local
> > Area Connection 7" > Properties > Realtek > Configure > Advanced >
> > Network Address = "Not Present".
> > 
> > 3.  In the Network Connections window/folder, I right-clicked "Local
> > Area Connection 7" > Repair = the computer tried for 10 secs then says
> > "Following action cannot be completed: Renewing your IP address".
> 
> These are due to the failure of dhcp somewhere. Windows sometimes gets 
> confused and makes assumptions about the dhcp server address - it's a 
> right PITA to sort out, but it does eventually. A fixed address will get 
> over that as a temporary measure.
> 
> > 
> > 4.  Should VPN (Virtual Private Networks) have a role to play in getting
> > this router to show a GREEN broadband connection and to work?
> 
> No, that's a different ball-game :-)
> 
> > 
> > 5.  In my Network Connections window/folder, if I display the contents
> > in "Details" mode, there are 4 headings:
> > a. Broadband - where there is nothing
> > Dial-up - where there are two settings for my USB Virgin modem, & my
> > external dial-up modem
> > b. LAN or High-Speed Internet - where there is the "Local Area
> > Connection 7" 
> > c. Wisard - where there are the icons for setting up "New Connection"
> > and "Network Setup".
> > The question is: should my router be working with the above situation? 
> > Am I right in believing that when using a Router sections (a) & (b) are
> > redundant?  Or do I need to have a setting in the Broadband section?
> > 
> > 6.  In Control Panel > Internet Options > Connections > LAN Settings =
> > should anything be entered specifically?
> 
> You can leave those empty, they are for more complicated connections, 
> such a via a LINUX proxy server ;-)
> 
> > 
> > I'm hoping you guys are going to see something meaningful somewhere in
> > all the above, especially in No. 1!
> > 
> > Eddy.
> > 
> > P.S.  Gotta take a break from this misery now till tomorrow morning. 
> > Will look for your responses then.

Thanks, PeeGee, will read all the above a second time later today, try
to understand it, then carry out everybody's suggestions.

Thanks.

Eddy.


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