nightdesigns
Gone missing, back soon
Premium
join:2002-05-31
AZ
 ·Cox HSI
| [Equipment] RT31P2 - Use my own DHCP
I have an RT31P2 adapter. Currently it's plugged into my network and nothing is plugged into the internal 3 ports. I'd like to be able to use those 3 ports as part of my existing network and not use the built in DHCP in the router. Is it possible?
I know in the past with wireless routers I'd turn off DHCP and plug my network uplink into one of the internal ports. Does this work the same, or is it different setup?
Thanks.
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mecha50
join:2004-06-11
Daly City, CA
1 edit | said by nightdesigns  :I have an RT31P2 adapter. Currently it's plugged into my network and nothing is plugged into the internal 3 ports. I'd like to be able to use those 3 ports as part of my existing network and not use the built in DHCP in the router. Is it possible? I know in the past with wireless routers I'd turn off DHCP and plug my network uplink into one of the internal ports. Does this work the same, or is it different setup? Thanks. You can disable the DHCP just like a regular linksys router. Just login to the configuration page (192.168.15.1). If I remember correctly username and password is "admin". |
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NetFixer
Freedom is NOT Free
Premium
join:2004-06-24
Murfreesboro, TN
 ·AT&T Southeast
 ·Vonage
 ·Cingular Wireless
·AT&T CallVantage
1 edit | reply to nightdesigns
I you are still planning to use your RTP31P2 as a Vonage ATA, you will still need to keep its WAN port connected to your existing LAN. That means that the LAN ports on the RTP31P2 will have to remain on a separate subnet from your existing LAN. That also means that disabling the RTP31P2 DHCP service is not required, because it will not interfere in any way with the DHCP server on your LAN. Of course, you can setup the RTP31P2 to do DHCP forwarding, and setup your existing DHCP server to also handle the RTP31P2 LAN subnet if that is what you want to do.
I currently have an RTP300 and a VT2442 connected in that fashion. The diagram below does not show anything connected to their LAN ports, but I do occasionally connect guest devices to those ports, and those devices have full access to the internet and also TCP connectivity such as HTTP and FTP to servers on my LAN, and even access to TCP based print services. NetBIOS and SMB connectivity is blocked by default (and that is the way I want it for the guest connections), but you could possibly disable the NAT firewall on the RTP31P2 in order to allow MS file and printer sharing if you require it.
My primary LAN subnet is 192.168.1.0/24, the Vonage routers use 192.168.11.0/24 and 192.168.12.0/24 for their LAN interfaces (and they each handle the DHCP for their respective LAN interfaces). Static routing statements in my primary and the two Vonage routers allow proper routing between the different subnets.
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