Until a week ago i was able to connect to the internet. But now strangely i am unable to connect to the internet. I am using FC4 dual boot with windows xp. i am using an ADSL connection to connect to internet. Its a pppoe. I have configured the connection to come up at boot. During boot-up the message appears Bringing up interface ppp0 [ok]. Even system-config-network shows that link ppp0 is active. I tried to ping google, but unsuccessfull. #route command shows the default has been set to eth0. I want that to change to ppp0. I tried changing the default to ppp0 by,
#route del default eth0
#route add default ppp0
this has only temproray effect. It changes the default to ppp0 & i am able to ping google.com, but lasts only for a few seconds, then automatically switches back to eth0 as default. Then i tried changing the /etc/default-route file content., which had only one entry that is eth0. I replaced that entry with ppp0. Then i restarted the network services. It too had a similar effect. I was able to ping google.com but my connection to internet last only for few seconds then it automatically switches back to eth0 as default which i see from route command. i have checked the check box to make ppp0 as the default route, but that doesn't work. I have restarted the computer but find no changes to the situation. I searched the internet but couldn't anything similar.
Could somebody guide me as to how to set ppp0 as the default permantely.
PS: My ISP provides me with dynamic ip only.