On Fri, Oct 25, 2013 at 4:42 AM, Bambi J Saastad
<[email protected]> wrote:
> I have a Window 7 pc on a tool that requires 2 NIC's
> 1 NIC is used by the pc to communicate with the tool and it's TCPIP settings
> are and must remain
> 10.10.0.100
> 255.0.0.0
> No Gateway
>
> Our network is also 10.x.x.x
> so LAN NIC is
> 10.1.36.93
> 255.255.240.0
> 10.1.32.1
>
> System can see the network and I can VNC or RDP to it from a different
> subnet, though will not auto map Server shortcuts, and cannot access the
> internet.
>
> Vendor has suggested that there is a registry setting that will put the LAN
> NIC into broadcast mode and it will fix the issue, but they do not know what
> this registry setting is.
> I have googled for a resolution but nothing has yet fixed it.
>
> Does anyone have any suggestions?

Yeah, that's not going to work. Per Richard and Glen, the overlapping
networks will fubar you until you change one of them.

Suggestions? Two come to mind

o- If the NIC that is connected to the tool *absolutely* must have a
/8 subnet mask, put the LAN NIC in a different RFC1918 range - either
192.168.0.0/16 or 172.16.0.0/12. If necessary, put up a separate vlan
on your switches just for that machine, which is probably a good idea
anyway. Make sure your router knows about it, too.

o- Push harder on the manufacturer of the device, and see if you can
notch down that /8 to a /30 or a /29.

Gotta say, though, that if the manufacturer of that tool specifies
that it can only reside in a full 10.0/8 subnet, they have no freaking
idea of what they're doing.

Kurt


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