Router passthrough

By brenrich101 ·
Hi all,

First post so not sure quite where to put this...

We have a managed Cisco router for our VoIP phone system and cannot turn DHCP off (the connection provider who owns the router also refuses to).

I was thinking of using this Cisco router as a 'modem' of sorts by taking its LAN feed and using it as a WAN link on another router which will face our network (DrayTek 2830), which I can then turn DHCP off. Would this work, and would I be able to completely disarm all security and open all ports on the DrayTek?

The purpose of this is to allow us to use the secondary data ports on our Polycom VVX410. Our VoIP provider doesn't allow us to set static IP's or VLAN's on the phones, so I'm having to use DHCP policies on our server and want to put our VoIP router on the network without it interfering with our Windows DHCP server.

Thanks in advance, and I'm open to ideas or suggestions!


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