Refer to the exhibits, which contain the network topology and BGP configuration for a hub.
Exhibit A.
Exhibit B.
An administrator is trying to configure ADVPN with a hub and spoke VPN setup using iBGP. All the VPNs are up and connected to the hub. The hub is receiving route information from both spokes over iBGP; however the spokes are not receiving route information from each other.
What change must the administrator make to the hub BGP configuration so that the routes learned from one spoke are forwarded to the other spoke?

Question

Refer to the exhibits, which contain the network topology and BGP configuration for a hub.

Exhibit A.

Exhibit B.

An administrator is trying to configure ADVPN with a hub and spoke VPN setup using iBGP. All the VPNs are up and connected to the hub. The hub is receiving route information from both spokes over iBGP; however the spokes are not receiving route information from each other.

What change must the administrator make to the hub BGP configuration so that the routes learned from one spoke are forwarded to the other spoke?

Matthew Farrington · Accepted Answer

Configure auto-discovery-sender on the hub

Matthew Farrington · Answer

Configure the hub as a route reflector

Matthew Farrington · Answer

Add a prefix list to the hub that permits routes to be shared between the spokes

Matthew Farrington · Answer

Enable route redistribution under config router bgp

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