Multiple BOVPN with Dynamic IPs

Hi

We have multiple remote offices and they often running off mobile connections and static IPs are not possible. We have one office working with a dynamic IP using dynamic dns but on adding the second we get the below error.

Two gateway endpoints cannot use the same local gateway interface and remote gateway IP address. A gateway endpoint in SAT, already uses these settings: Local gateway interface: External; Remote gateway IP address: Any.

Is there a solution to multiple branch offices with dynamic ips.

Comments

  • sure, just make your Gateway (Phase1) configurations like this:

    First BOVPN:
    Main Office:
    Aggressive Mode when using IKEv1
    Local Gateway

    • By IP Address: 222.222.222.222
      Remote Gateway

    • Dynamic IP address

    • By Domain Information = remote1.office

    Remote 1 Office:
    Aggressive Mode when using IKEv1
    Local Gateway

    • By Domain Information = remote1.office
      Remote Gateway

    • Static IP Address: 222.222.222.222

    • By IP Address: 222.222.222.222

    Second BOVPN:
    Main Office:
    Aggressive Mode when using IKEv1
    Local Gateway

    • By IP Address: 222.222.222.222
      Remote Gateway

    • Dynamic IP address

    • By Domain Information = remote2.office

    Remote 2 Office:
    Aggressive Mode when using IKEv1
    Local Gateway

    • By Domain Information = remote2.office
      Remote Gateway

    • Static IP Address: 222.222.222.222

    • By IP Address: 222.222.222.222

    The domain names can be whatever, and you don’t need to use Dynamic DNS.
    It’s also better to use IKEv2, then you don’t need to bother about Main or Aggressive mode.

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