Initial BGP configuration. Instructions can be found at this link: How to configure BGP
ISPs typically aggressively filter announcements from their customers, but the point of BGP is to have as much control over route advertisements as possible. Address prefix 202.0.0.0/24 is being advertised in this example. One should replace this prefix with the ones in their network.
Part 1: Configuring Route Filtering
To configure BGP, go to Network > Virtual Routers/[VR]/BGP
Go to the Export Rules tab. Add a new rule.
Name: ISP1-export
Used by: ISP1
Under Match:
Address prefix: 202.0.0.0/24, exact match => Here select the prefix matching your network.
Under Action:
allow
Repeat the above for ISP2.
Commit your changes.
Part 2: Verifying the BGP Route Filtering Setup
> show routing protocol bgp rib-out
You should see only your own prefixes being advertised to ISP peers.
Use ping and traceroute to make sure you still have full connectivity with the ISPs.