help needed for Ubuntu 8.04 on HP 6720s notebook

[Derek Broughton]

Abhishek Bawkar wrote:

> Hi Brian,
> 
> I confirmed it again on windows settings, there are as mentioned below,
> 
> *IP address:      100.100.102.192*
> *Subnet mask:  255.255.255.0*
> *Gateway:        100.100.100.1*
> *DNS:               100.100.100.1*
> And, with these settings, my internet connection works fine on both,
> Laptop and Desktop. I use the same connection either on Laptop or on
> desktop at a time. On both the machines it works fine on windows.
> 
> But, it's not working on Ubuntu. I could setup my desktop as Proxy, but i
> want direct connection on my laptop.
> 
>> If your gateway is outside the LAN of your eth card, then you'd have
>> to add a static route to get there, which is possible I suppose, but
>> I'm betting on a typo.
> By *adding a static route*, did you mean
> this<http://www.pcbuyersguide.co.za/showthread.php?t=6927>
> ??
> 
> What care should I take, if i do add a static route??
> 
> I have *tried* changing *Subnet mask* to* 255.255.254.0,* didn't make any
> difference. :-(
> 
> Secondly, if you are thinking so, there is NO issue of MAC address, b'coz
> I use the same connection on both laptop and desktop, one at a time, i.e
> my ISP doesn't register MAC address against my username and password.
> 
> Please let me know your comments ASAP.
> 
> Thanks for the help.
> 
> Abhishek
> 
> On Sat, Sep 6, 2008 at 8:06 PM, Brian McKee <brian.mckee at gmail.com> wrote:
> 
>> On Sat, Sep 6, 2008 at 10:33 AM, Brian McKee <brian.mckee at gmail.com>
>> wrote:
>> > On Sat, Sep 6, 2008 at 2:23 AM, Abhishek Bawkar
>> > <abhishek.linux4me at googlemail.com> wrote:
>> >> iface eth0 inet static
>> >> address 100.100.102.192
>> >> netmask 255.255.255.0
>> >> gateway 100.100.100.1
>> >
>> > Shouldn't that be gateway 100.100.102.1 not 100.1 ?  (or maybe the
>> > address should be 100.192 not 102.192)  Your gateway is not in the
>> > default subnet.

Not only that - shouldn't the addresses be 10.10.*?  You _mustn't_ just make
up IP addresses, and my recollection is that 100.100 is not a private
address.  You can use 192.168.*.* and 10.*.*.*, and I know there's another
one, but I haven't needed to remember it...

>> Actually, on further reflection - I suppose the whole problem could be
>> the netmask - a larger netmask would put the address and the gateway
>> on the same subnet.

I don't think so
-- 
derek