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Should I Worry About These


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#1 dev_boy

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Posted 23 May 2007 - 04:06 PM

I'm not all that up on firewalls and have noticed that my firewall keeps blocking the same 'non-routable' IP address from trying to acces Port 137 (UDP). I banned this ip as i was worried and getting about 100 attempts a day. the same ip address after being block has also started try to access Port 68 (UDP) every now and again.
the ip address that is sending these is the same as mine except that the last number is one different. could this be my router?


I have also had various different ip address trying to access Port 1026 (UDP).

can anyone offer me an explaination (non-technical please) for this. and secondl;y is it anything to worry about?

Thankyou in advance for your time.
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#2 quietman7

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Posted 23 May 2007 - 09:29 PM

The goal of the firewall is to prevent remote computers from accessing yours and provide an alert of unrequested traffic that was blocked along with the IP address. Even your ISP will send out regular checks to see if your computer is still there.

Firewall alert messages are a response to unrequested traffic. These alerts are often classified by the network Port they arrive on. It is not unusal for a firewall to give numerous alerts regarding attempted access. Infected machines on the net randomly scan a block of IP addresses looking for vulnerable ports and make repeated attempts to gain access. Your firewall is doing its job (blocking) and alerting you about these attempts.

If the alerts become too annoying, you should be able to go into your firewall settings and turn them off.

Edited by quietman7, 23 May 2007 - 09:35 PM.

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#3 dev_boy

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Posted 24 May 2007 - 03:23 AM

Thankyou for your responce, it is nice to know that my computer is safe and these alerts are nothing to worry about.

#4 quietman7

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Posted 24 May 2007 - 06:28 AM

Your welcome.
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