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Which of the following is TRUE concerning unnumbered VPN Tunnel Interfaces (VTIs)?

Which of the following is TRUE concerning unnumbered VPN Tunnel Interfaces (VTIs)?

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A.
VTIs must be assigned a proxy interface.

B.
VTIs are only supported on SecurePlatform.

C.
VTIs can only be physical, not loopback.

D.
Local IP addresses are not configured, remote IP addresses are configured.

4 Comments on “Which of the following is TRUE concerning unnumbered VPN Tunnel Interfaces (VTIs)?

  1. Sidza says:

    Unnumbered VTI
    For unnumbered VTIs, you define a proxy interface for each Security Gateway. Each Security Gateway uses the proxy interface IP address as the source for outbound traffic. Unnumbered interfaces let you assign and manage one IP address for each interface. Proxy interfaces can be physical or loopback interfaces.
    Unnumbered interfaces are supported for Gaia and IPSO (3.4 and higher) platforms.




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  2. Catalin says:

    Configuring Unnumbered VTIs
    Working with unnumbered interfaces eliminates the need to assign two IP addresses per interface (the local IP, and the remote IP Address), and the need to synchronize this information among the peers.

    If the VPN Tunnel Interface is unnumbered, local and remote IP addresses are not configured. This interface is associated with a proxy interface from which the virtual interface inherits an IP address. Traffic initiated by the Security Gateway and routed through the virtual interface will have the physical interface’s IP Address as the source IP.

    Unnumbered interfaces are supported for Gaia and IPSO (3.4 and higher) platforms.




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