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    Additional WAN subnet working without VIPs?

    Scheduled Pinned Locked Moved HA/CARP/VIPs
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    • M Offline
      MaxPF
      last edited by

      This is my current setup:

      pfSense 1.2.3
      WAN: X.X.X.24/29
      WAN Gateway X.X.X.25/29

      The 4 available IPs are set as CARP VIPS and nattet 1:1 on servers on LAN and DMZ.

      Few months ago we got an additiona block of IPs  X.X.X.120/29 which I initially configured as Proxy ARP network for the WAN and then setup 1:1 nat to other servers in the DMZ. Everything worked perfectly.

      Today I discovered that earlier today the Proxy ARP network was deleted by mistake in the VIP configuration. I checked the servers that are 1:1 natted with X.X.X.120/29 and they are still working and everything is still nattet correctly in and out.

      Is this because of some arp cahing or it means I was using Proxy ARP when in fact I didn't need any VIP at all for the additional IPs?

      Max

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      • M Offline
        MaxPF
        last edited by

        I found the answer. It was caching. After the server was rebooted, NAT didn't work anymore and I had to recreate the Proxy Arp entry in the pfSense.

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