Refer to the exhibit, which shows an enterprise network connected to an internet service provider. An administrator must configure a loopback as a BGP source to connect to the ISP. Which two…

The correct answer is A. ebgp-enforce-multihop B. update-source. When configuring a loopback interface as the BGP source for connecting to an ISP, two important settings must be applied: 1. Enable EBGP Multihop (ebgp-enforce-multihop) BGP normally expects directly connected neighbors, but since the ISP and FortiGate A are using loopback…

FortiGate-VM Configuration in Azure

Question

Refer to the exhibit, which shows an enterprise network connected to an internet service provider. An administrator must configure a loopback as a BGP source to connect to the ISP. Which two commands are required to establish the connection? (Choose two.)

Exhibit

Options

Aebgp-enforce-multihop
Bupdate-source
Cibgp-enforce-multihop
Drecursive-next-hop

How the community answered

(29 responses)

A
79% (23)
C
7% (2)
D
14% (4)

Explanation

When configuring a loopback interface as the BGP source for connecting to an ISP, two important settings must be applied: 1. Enable EBGP Multihop (ebgp-enforce-multihop) BGP normally expects directly connected neighbors, but since the ISP and FortiGate A are using loopback interfaces, packets will not be sent directly between their physical interfaces. The ebgp- enforce-multihop command allows BGP to form an eBGP peering over multiple hops. 2. Set the Update Source (update-source) Since FortiGate is using a loopback interface as the source, the update-source command ensures that BGP updates originate from the loopback interface rather than a physical interface. This is essential because BGP peers must match the source IP with the configured neighbor

Topics

#BGP#loopback interface#ebgp-multihop#update-source

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