Why is Zone Alarm blocking 169.254.33.9?

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FatFurryGuy

72 posts

Master Geek

#112736 18-Dec-2012 18:40

I have recently dumped my Vodem for a naked package (no home phone) complete with wireless router; recently Zonealarm has been blocking traffic from 169.254.33.9. Is there something amiss?

freitasm

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Geekzone

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#734502 18-Dec-2012 18:43

I've change the subject to something meaningful.

This address is a reserved address ("link local"). Routers shouldn't be forwarding this from the Internet to your LAN, so it should be something internal.

Check you router configuration - what's the IP address for your router and DHCP?

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FatFurryGuy

72 posts

Master Geek

#734521 18-Dec-2012 19:22

Thanks Mauricio

192.168.1.1
DHCP enabled

These are the vodafone defaults, that's why I was worried about thye 169. address didn't appear to be from my lan?!

FatFurryGuy

72 posts

Master Geek

#734539 18-Dec-2012 20:17

Seems to be approximately every 30 minutes and from a different Port (increasing numbers)

mjb

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#734542 18-Dec-2012 20:23

A 169.254 address is self-assigned by a host when DHCP requests go without response. the subnet is not routed on the wider internet, so it must be coming from your LAN.

try checking your arp cache when packets arrive. that'll help you by at least identifying the hardware address (MAC address) of the offending device. (use "arp -a" in a cmd.exe window).

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FatFurryGuy

72 posts

Master Geek

#734596 18-Dec-2012 21:32

Did you mean at the time ZoneAlarm notifies? All I can see is:
C:\>arp -a

Interface: 192.168.1.3 --- 0x2
Internet Address Physical Address Type
192.168.1.1 20-f3-a3-ce-d0-6a dynamic

FatFurryGuy

72 posts

Master Geek

#734606 18-Dec-2012 21:48

Ah,

If I try it whne ZoneAlarm popsup, I get

Interface: 192.168.1.3 --- 0x2
Internet Address      Physical Address      Type
192.168.1.1           20-f3-a3-ce-d0-6a     dynamic
192.168.1.2           00-12-f0-3a-0b-07     dynamic

the 1.2 address is the laptop on wireless (thru the router)