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Site to Site VPN using multiple IPs for a DNS host name.

In setting up a Site to Site VPN how does it work if the gateway name(s) point to a DNS host name that has multiple IPS (redundant connections)?

Host1.xyz.com returns 10.0.0.1 and 10.1.0.1 and 10.2.0.1

Category: SSL VPN
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  • BWCBWC Cybersecurity Overlord ✭✭✭

    @RVicker do you need redundancy for SSL VPN (in which category you posted) or for Site to Site VPN?

    Multiple DNS names might work for SSL VPN (never tested) but for Site to Site (or Tunnel Interface) it will not, you need to define the connections separately.

    --Michael@BWC

  • RVickerRVicker Newbie ✭

    Customer has multiple Internet services for redundancy.

    While you can put in to addresses in the Site-To-Site definition in IPSEC VPN and it will "fail over" from the client end there are reasons to put multiple IPs in the same DNS hostname. Wanting to see if the Sonicwall will "walk" the list of IPs till it gets a connection.

  • prestonpreston Enthusiast ✭✭

    Hi @RVicker , in the IPSec VPN Advanced make sure you have this enabled to ensure it reconnects using the new resolved IP


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