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2 Ethernet Ports on Modem
Has anyone been able to get both ethernet ports on their modem to work at the same time?
I have an Arris SB8200 (that has 2 ethernet ports on the back) and I would like to have one ethernet cable plugged directly into my computer, and another running to my router.
When i do this though, I get internet to the computer OR the router, but not both at the same time.
Arris customer support says the modem will run both ports at the same time if the ISP (Cox) will provide me a second IP address which I am willing to pay for, but every Cox "tech" that I have spoken to on the phone either doesn't know how to do this or doesn't think that Cox can issue another IP address to the same modem.
Thanks
-LP
Andrew_Wees
+4 more
Contributor III
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cox doesn't do 2nd ip addresses anymore
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Bruce
+4 more
Honored Contributor III
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When delving into topology, stop using the word "Ethernet."
A modem has a WAN port...not a LAN port. At best...if it's active...the 2nd port won't have Internet service but your other devices may be able to discover the 2nd port via layer-2.
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bearone2
Contributor III
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i use both ports with my 4141 panoramic unit, hardwired to pc, 2nd port to old netgear router to run 2 older dell laptops.
both function at the same time.
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