Airport Extreme is messing up with IP-ID of outgoing packets

Can someone from the kernel team at apple explain me why are they tampering with the IP-ID in the outgoing IP packets of the Air Extreme. Packets sent with IP-ID x and the device is stamping an IP-ID y after the packet gets forward to the Internet. This is really bad and screws up several diagnostic tools that rely on IP-ID to match queries.
Cheers --RIcardo

Hello brian cooper. Welcome to the Apple Discussions!
For some reason the 802.11n AirPort Extreme Base Station (AEBSn) is not recognizing the modem and is unable to find the DHCP server in order for it to get a proper IP address from your ISP.
I would start by performing a complete power recycle of your networking equipment to see if that gets them communicating again.
Please try the following:
o Power-down the modem, AEBSn, and computer(s); wait at least 10-15 minutes. (Note: Power-down order is not critical.)
o Power-up the modem; wait at least 10-15 minutes.
o Power-up (plug into power) the AEBSn; wait at least 5-10 minutes.
o Power-up the computer(s).
Computers connected to the AEBSn, either by wire or wireless, should now have Internet access.
If this doesn't resolve the issue, I suggest that you perform a "hard" reset on the AEBSn, and then, go through the power recycle again. To do this properly, first power-down all of the equipment; perform the reset; re-power-down the AEBSn, and then, power-up the modem, AEBSn, and computers in order.
If this still doesn't work, I would recommend changing the Ethernet cable to rule out any issues with it.
Finally, if this doesn't work, the AEBSn may have a faulty WAN port or some other problem. The option then would be to take it to your local Apple store to confirm any problems.

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