AZTCOFWCYBER SECURITY SOLUTIONS
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Knowledge base/DNS Configuration

AZTCOFW / TECHNICAL GUIDE

DNS Configuration

Configuration RecipesL2TP/IPsec Remote Access VPN Configuration Example

If DNS servers are supplied to the clients and the Unbound DNS Resolver is used, then the subnet chosen for the L2TP clients must be added to its access list.

  • Navigate to Services > DNS Resolver, Access Lists tab
  • Click  [Image unavailable in the source]+ Add to add a new access list
  • Enter an Access List Name, such as VPN Users
  • Set Action to Allow
  • Click [Image unavailable in the source]+ Add Network under Networks to add a new network
  • Enter the VPN client subnet into the Network box, e.g. 10.3.177.128
  • Choose the proper CIDR, e.g. 25
  • Click Save
  • Click Apply Changes

Imported from the AZTCOFW knowledge base on 2026-09-05. Historical guidance may refer to older software versions. Confirm applicability before changing a production system.

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