2 vlans on same ip range? - TechRepublic
Question
November 13, 2012 at 02:37 PM
neube

2 vlans on same ip range?

by neube . Updated 13 years, 7 months ago

Hey guys,

I’m not the greatest networking guy, but this just doesn’t seem right. We’re having massive networking problems, and I thought I spotted the problem, but I’m being told I’m wrong. Here’s what I see. Essentially, my server is statically set to 10.10.10.1/255.255.224.0 and I can see some of my other devices on that same network (10.10.10.x/255.255.224.0 also statically set), but not all and it’s very sporadic. Meanwhile, if I change my server to dhcp, I pull 10.10.10.1/255.255.192.0 (same ip, different subnet), which tells me there’s something broadcasting another network in the same ip range. When I showed the network team, they told me this is fine – that they have 2 vlans on the same ip range in the same ports on a Cisco 3560G. Has something changed? Am I losing my mind or is this just flat wrong on a basic level?

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