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Author Topic: DFL-800 multiple DHCP address on one MAC address  (Read 6228 times)

DeFYAnT

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  • Posts: 20
DFL-800 multiple DHCP address on one MAC address
« on: January 16, 2013, 01:15:28 AM »
Hi there, my DHCP server on my DFL-800 is showing many address leases to one MAC address.  The MAC address in question belongs to my Windows Home Server.  Any reason this is happening or how I can correct it?  Thanks

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danilovav

  • Level 4 Member
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  • Posts: 424
  • Alexandr Danilov
Re: DFL-800 multiple DHCP address on one MAC address
« Reply #1 on: January 18, 2013, 01:24:19 PM »
Looks strange...
I have no Windows Home Server, but all others OS (Windows Server/Professional/Home) never had such problem.
Try to dump traffic via Wireshark (on PC) and pcapdump (on DFL).
Also, logs from Windows are very interested - why it want to ackowledge new IP.
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BR, Alexandr Danilov

Hard Harry

  • Guest
Re: DFL-800 multiple DHCP address on one MAC address
« Reply #2 on: January 18, 2013, 03:20:20 PM »
Do you have any virtual machines configured on the server? Seems more like a server issue then router issue.

Also found this.
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DeFYAnT

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  • Posts: 20
Re: DFL-800 multiple DHCP address on one MAC address
« Reply #3 on: January 18, 2013, 05:28:10 PM »
danilovav and hard harry, thanks for your replies.  The Windows Home Server is not acting like a DNS server, DFL-800 currently has a DNS relay setup for use with Dyn Internet Guide.  I'll give your suggestions a go and get back in a few days to see how I went.
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DeFYAnT

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  • Posts: 20
Re: DFL-800 multiple DHCP address on one MAC address
« Reply #4 on: January 19, 2013, 11:22:26 PM »
OK, I may have had a fix.  Disabled the DHCP client on the server, no need for a server to be assigned DHCP addresses.  Now my firewall DHCP leases only have 3 addresses, not 15.

Thanks
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