ARP Spoofing!!! What's the solution?

[Basant_911]

Hello!

I'm sharing an internet connection through a NAT-enabled ADSL router.
Someone keeps trying to cut off the connection from me, using such programs
as Netcut, SwitchSniffer etc.

I tried Anti-Netcut, and I even got the MAC address of the router and made a
static ARP entry, though i couldn't communicate with the router. I don't know
what program he uses but It seems like I'm on a different subnet

Any solution???

 

[mikeyhsd]

talk to the person whose router you are using and ask what is going on.




(e-mail address removed)



Hello!

I'm sharing an internet connection through a NAT-enabled ADSL router.
Someone keeps trying to cut off the connection from me, using such programs
as Netcut, SwitchSniffer etc.

I tried Anti-Netcut, and I even got the MAC address of the router and made a
static ARP entry, though i couldn't communicate with the router. I don't know
what program he uses but It seems like I'm on a different subnet

Any solution???

 

[Jack \(MVP-Networking\).]

Hi
You have to describe better the topology of the Network, and what kind of
security is used on your computer.
Jack (MVP-Networking).

 

[Basant_911]

mikeyhsd,

I almost certainly know the bad guy who does the attack. He simply does it
to gain greater bandwidth share.


Jack,

The network topology is a star; one ADSL 1-port NAT-enabled router, one
8-port 10/100 Ethernet switch. I use Win. XP SP2 and I've recently installed
Norton 360.

I think it's nothing to do with firewalls. ARP resides in the data-link
layer. Is there anyway to stop responding to ARP requests?

 

[James Snell]

To be honest this sounds like this is not really a technical problem; this is
more of a "some guy doesn't understand the concept of sharing" problem that
no amount of technical assistance can resolve.

Only other thing you could do is change your mac address (like every time
you connect to the lan) but you'd need a tool to do it (then I'm not sure all
lan adapters support it anyway).

Alternatively you could talk to the router and dump / redirect the guy's
traffic if you know where it's going... But that's just as childish.