BGP Site to site VPN learned routes still in table despite the BGP peer down for a week

Brendan Edward Richardson 0 Reputation points
2026-08-18T12:52:39.9666667+00:00

we see that the learned routes are still available with no BGP peer, this was notices as I wanted to be sure that the BGP filter on the remote end was working , We have a filter on the FortiGate this is working and confirmed by FortiGate support.

The issue is stale routes in BGP Site to Site VPN even though BGP is not configured on the remote FortiGate side

Azure VPN Gateway
Azure VPN Gateway

An Azure service that enables the connection of on-premises networks to Azure through site-to-site virtual private networks.

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