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Cannot access the Internet

Posted on 2012-04-06
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Last Modified: 2012-04-11
I have a Cisco 1841 connected to the Internet with public IP address. I have a PC connected to the Fa port of the router. The block of IP address for the LAN is a public block. My PC cannot access the Internet. I am not sure why as I have a default route (ip route 0.0.0.0 0.0.0.0 ISP_IP_address) pointed to the ISP WAN port.
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Question by:biggynet
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12 Comments
 
LVL 17

Expert Comment

by:Anuroopsundd
ID: 37816970
are you able to ping to internet site from the router?
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LVL 17

Expert Comment

by:Anuroopsundd
ID: 37816980
from your pc are you able to ping wan side of the router..
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LVL 6

Expert Comment

by:skraaz
ID: 37816985
What is your PC, IP address,gateway and DNS?
are u using the public IP address provided by your ISP on your Wan port?
is the public IP pingable from your router?
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LVL 17

Expert Comment

by:Anuroopsundd
ID: 37816995
try to ping 209.191.122.70 from router and your machine and let know the result..
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Author Comment

by:biggynet
ID: 37817022
From the router I can ping:
- The ISP router WAN port
- The PC
- the router Fa port
- the router WAN port

From the PC, I can ping:
- The router LAN/WAN port

The WAN side is /30 and LAN side is /28 public IP addresses.

I am not the location where the PC and the router are but what is 209.191.122.70.

Thx
0
 
LVL 6

Expert Comment

by:skraaz
ID: 37817046
Thx..
What about DNS ?
Are u able to reach DNS servers?
are u able to ping google from your router?
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LVL 17

Expert Comment

by:Anuroopsundd
ID: 37817050
209.191.122.70 is ip of one of yahoo.com server which provide ping response from internet.
so that is why i want to test if you are able to ping this ip from router and machine.
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LVL 17

Expert Comment

by:Anuroopsundd
ID: 37817059
so you have internet. can you try to ping your router ip's....
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Accepted Solution

by:
biggynet earned 0 total points
ID: 37817101
Problem fixed. The LAN public block of IP address was missing in the BGP routing table of the provider as a result of their maintenance. Thx
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LVL 17

Expert Comment

by:Anuroopsundd
ID: 37817131
that's good. so you should be able to connect now to the router from your location also..
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LVL 6

Expert Comment

by:skraaz
ID: 37817133
Have a nice day!
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Author Closing Comment

by:biggynet
ID: 37831695
I found out what the issue was
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