I am a complete newbie and also an average computer user. I just downloaded
Ubuntu 9.10. I have MTNL Broadband connection(Modem:Huawei SmartAX MT882).
Initially in network manager dynamic(dhcp)option was selected and i was getting something like wired connection inactive/disconnected.
then i chose static and entered ipv4 settings, the same one which i use in windows xp sp2. this made wired Auto eth0 active
then i opened mozilla and tried to open google and other websites but got server not found.
same thing happened when i used ping(tried this because this was given in help.)

now wat to do?
explain in layman lang.

Do you know the IP addresses of your Router and your modem?
Can you post those IP addresses back here in your thread?
can you do ifconfig and post the results back here?
can you ping the ip address of your router?
can you ping the ip adress of your modem?

ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:0c:76:af:77:48
inet addr:192.168.1.7 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::20c:76ff:feaf:7748/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:42 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:360 (360.0 B) TX bytes:4949 (4.9 KB)
Interrupt:23 Base address:0xa000

are you able to ping to your default gateway?

@Raj
I didn't get u.
please explain in steps wat to do?

u r using static IP.. then wht u inserted as a default gateway? hope so u r at least aware of default gateway... please post which ISP u r using n whts ur default gateway (DG)? n firstly try to ping ur DG... n post ur replies..

i entered 192.168.1.1
whenever i enter this it becomes 0.0.0.0
ISP is mtnl
Broadband(Modem)

someone told me to try
ping -c5 209.85.225.103

connect: Network is unreachable

ok.. u r using modem then default gateway must be provided by ur ISP... firstly make correct settings in ur machine..
if ur ISP is providing DHCP tn if u wnt to use Internet service for single PC/Laptop then select IPv4 on dynamic (sometimes DHCP)one and dynamic DNS.
for static entries:
IP : any IP from same subnet. (u can use 192.168.1.x, where x may b 2/5/6/10/35/60 depends..)
DG : 192.168.1.1 (IP of ur modem or router or any other DG of ur ISP)
save this connection.
then from top right hand side connect to this new eth0 entry (which u hv saved above).
then in terminal firstly check out ur DG through
#route -n
then try to ping ur DG
#ping 192.168.1.1 (in ur case, as u mentioned .1 is ur DG)
if its getting successful then try to ping any open DNS like 4.2.2.2
and if here u r gtng sucses here then nw u r able to browse internet.
try out these steps n if problem persist post back with the results u r gtng.

it is just not happening
i pinged my default gateway and got that unending list of connecting 192.168.1.1
then i pinged 4.2.2.2
i got something like network could not be established/unreachable.

i had ubuntu 9.04 and mint 7 before and net used to work well on those.
then i uninstalled ubuntu and also got my modem replaced, from then onwards
net didn't work on mint and now it is not working on ubuntu 9.10
I have HUAWEI SmartAX MT882(Modem).
You can throw some light on it Raj.

if you are able to ping your gateway it means settings from ur machine side r proper.. make a try with modem settings.. change accordingly if necessary... look out for mac binding issue.. cause some routers and modems use ma binding, u can observe the binded mac address in ur mtnl a/c, compare that with ur current mac, if different use mac cloning n change accordingly.. otherwise settings from ur side r ok.. jst ask mtnl for help..
or if u hv 4gt smthng to mention u cn buzz back

i think default IP of HUAWEI SmartAX MT882(Modem) is 192.168.1.1
username : admin
password : admin

ya it is