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I've noticed that my home broadband speed seems to be a bit slow in recent days. I noticed, last night, that my Wireless Router had given a DHCP lease to a public IP address with an odd formation; something like 111.10.11.110.

Should I consider these warning signs of my ZyXEL router being compromised in some way?

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FWIW, that IP address is in China. – Daniel R Hicks Oct 30 '11 at 21:52
    
(Do you have a password set on the router?) – Daniel R Hicks Oct 30 '11 at 21:54

First things first, change your passwords and check your configuration settings.

That being said, I don't think it's been compromised, though a lease to a public IP address sounds funny. Perhaps you are mixing up some terms?

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Nope. There were three items in the DHCP lease list: 192.x.x.a (laptop) 192.x.x.b (DROID) 111.10.11.110 (Crash Override or Acid Burn) – IVR Avenger Apr 8 '10 at 18:46

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