trouble connecting leased line to linux

[kjebas]

A week back my company purchased 1 mbps leased line from the airtel ISP who gave mrotek SHDSL

modem and the engineer who have installed the wiring etc has given us two sets of ip addr which

he configured in winxp and the first set of ipaddr should be entered as the details follows

 First set of ipaddr:
 IP : 125.22.255.122
 mask : 255.255.255.252
 Gateway : 125.22.255.121

 Dns server addr:
preferred dns server : 203.145.184.32
alternate dns server : 203.145.184.13

and the winxp must be restarted after and he says that the first set of ipaddr is for logical

connection that is this first set of ipaddr should be established with the ISP and after that in

the same place after restarting we have to enter the second set of ipaddr as follows in the same

ethernet device

ipaddr: 122.165.253.233
mask : 255.255.255.248
gw : 125.22.255.121

dns server address (same)
preferred dns : 203.145.184.32
alternate dns : 203.145.184.13

                Again after restarting the winxp and after booting it starts up browsing

But what my actual question is i want to connect to linux machine but can't able to do i did the

same procedure what I should did for winxp but i failed in more attempts . In linux first of all

when i started configuring the first set of ipaddr the gateway pings and after restarting  and

enterting the second set of ipaddr the gateway can't pings up and note in both set of this ipaddr

the gateway or same and what i have to do to get it connected

[Ricky]

I do not understand this thing of restarting and reassigning IP to same NIC. May be because I do not have experience with SHDSL.

However, are you trying linux and windows xp on same machine ?

And btw, instead of restarting winxp, try disabling the network connection and then change its IP to second set and enable it. Tell me if it works.

After this we can see how to make work it in linux.