destination host unreachable.. while its reachable for first few minutes
Hi guys..!!
I am a new user for Ubuntu machine... and i am facing a problem in network connectivity please help me out. I got one D-link router with one ISP and 2nd Pronet ADSL2 router.. right now i am using 2nd ISP through pronet router by addressing to DHCP settings for 2nd ISP.. when i switch it on 1st ISP then for first few minutes it works fine but then it becomes unreachable :o I have restarted D-link router several times but again after few minutes it ends in destination unreachable... any possible cause and guidance for overcoming this problem? m nt gating what to do coz, as its reachable initially when restarted means physical connections are fine and working properly... any help?? |
Post the result of route
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When it becomes unreachable can you do the following and post the results
Code:
ifconfig Code:
route Code:
ping 127.0.0.1 Code:
ping google.com Code:
ping 74.125.45.105 |
this is the ping reply after 5-10min connectivity
Code:
test@test-desktop:~$ ping 192.168.1.3 ifconfig : Code:
test@test-desktop:~$ ifconfig route: Code:
test@test-desktop:~$ route ping: Code:
test@test-desktop:~$ ping 127.0.0.1 Quote:
Code:
test@test-desktop:~$ ping 74.125.45.105 problem is i am able to ping and connect over internet through another gateway as well as through 1.3 gateway but after 5 - 10 min this gateways goes down.. please help me for resolving this issue |
Those are the results of route after it goes down or before it goes down?
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after it goes down
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after that i need to change pronet routers DHCP so that i can change default gateway and can access internet... :(
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I have a feeling I know the solution to your problem. I faced the same problem, but it never connected in the first place.
route add default gw <your ip> (Assuming you have an ip. Check with ifconfig. Enter that ip if it's there) route add default gw <your gateway> I will elaborate if it works. |
no its still unreachable.. i have added both routers ip as default gateway and now added machines ip also as a def gw... 1 point i just noticed that all the lights of D-link router are constantly in on condition while normally they are supposed to be in blinking mode... is that any problem with router itself? but if the problem is with router then how come initially it allows the connection?
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Did you add your own address before adding the router's address? The order is important.
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no i have added both def gws first n then after concerning here hv added my machines ip as a def gw.. :-o shd i supposed to change tht order? n if yes then how? coz i dnt know h to change tht order.. :'(
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Easiest way is to restart, wait for it to fail, and then add in order. Those additions were temporary so they'll go when you restart.
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have tried this also... but it goes down after some time.. :(
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After it disconnects, did you follow the steps, see it connect for the second time and then watch it go down?
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DSL internet is supposed to disconnect if it isn't active. If you reconnect, it should work again. If you are using a web browser, surfing the web, the dsl carrier probably wont drop the connection. If it does, call the isp. DSL is not always on. When the dsl drops, it might hang the router. This would make reconnecting impossible without booting the router.
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