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This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

DGA0122 Dual LAN Subnets: Difference between revisions

DGA0122 Dual LAN Subnets (view source)

Revision as of 09:58, 12 May 2025

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===Dual LAN Subnets===
Desired outcome: You want the router to have a main NAT's IPIPv4 block and allocate IPs by DHCP to your LAN, but you want an additional public subnet which you can use on specific devices on your LAN that you configure manually.
 
PrerequesitsPrerequisites: The router would beis in athe initial state whereas it isdelivered, configured initially without thea public (Internet facing) block of IPsIPv4 -addresses. ie,It it'sonly has theone privatepublic IPsIP onaddress, theand LAN. Then, theall IP blockaddresses canon bethe allocatedLAN toare your lineprivate and somerely manualon configurationnetwork canaddress betranslation applied to the router as follows:(NAT).
 
Then, the IP block can be allocated to your line and some manual configuration can be applied to the router as follows:
 
[[File:DGA-System-Info.png|thumb|System Menu]]
 
Note:
*DHCP will use the private IPs, it's not possible to change it. (although see [[DGA0122 DHCP Public IPs]]).
 
*Sending a config from the A&A control pages will overwite these changes.
David-AA
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