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Cisco Router and Switch question

By tecaprio ·
We have a Cisco 800 series router and a Cisco switch. Two days ago are ISP replaced our modem and sence then none of the computers can get on the internet. I remember that if you shut down a Cisco router the ports close, is there something else that needs to be changed? Does something need to be changed on WAN port as well?

Tom

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ping

by Fregeus In reply to Cisco Router and Switch q ...

Does your 800 ping the IPS router?
Does your ISP still have the same DNS settings?
Is the port between your ISP router and your 800 up on layer 1 and 2?
Has the IP adresse of your ISP router changed in any way? If so, have you adjusted your default gateway/routes to reflect that change?


TCB

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New modem, same ISP

by tecaprio In reply to ping

I can't get into the router yet. I am waiting on our vendor to give me the logon credientials.
Yes the modem was replaced this morning (same ISP). What is the command line to change the default gateway/routes to reflect that change? Also, I cannot remember the command line to open the ports up on the router?
Thank you!!!

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