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Strange trafffic between router and ADSL modem

We have a network with a Catalyst 500 switch and a 871 Ethernet router. The router has been configured ,with SDM, a SDM default medium security firewall. We observe that there is continuous traffic between the router and the internet(DSL modem). I don't see this traffic on any of the hosts. The firewall is moderately active filtering incoming traffic, but the logging that I have been able to set up does not show the activity that I see on the router and modem front panels. Could this be an indication that the router is infected?

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Re: Strange trafffic between router and ADSL modem

As per me there might be problem with the spam from service provider end.

regards

shivlu jain

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