BGP

Tools

There are a lot of useful online BGP tools available:

For Checking BGP route, you can also use traceroute etc

traceroute -A <ip-address>
mtr -z <ip-address>

Some good alternative tools (Looking Glass) for traceroute or ping globally

BGP Software (Without Router)

Commands

(ToDo)

BGP With BIRD

Youc an check example (complicated) BIRD configeration here

Example (simple) BIRD configeration

This is a simple BIRD configuration example for easy setup

router id <customer-ip-address>;

protocol kernel {
        scan time 60;
        import none;
        export all;   # Actually insert routes into the kernel routing table
        persist;
}

protocol device {
        scan time 60;
}

protocol bgp <bgp_protocol-peer-asn> {
        local as <customer-asn>;
        neighbor <peer-ip-address> as <peer-asn>;

        source address <customer-ip-address;

        export where proto = "static_bgp";
        import none; # Disable import routing table from upstream
}

protocol static static_bgp {
        import all;
        route <announcing-ip-block>/<prefix-length> reject;
}

Useful Commands

Reload configeration

birdc configure

Show status

birdc show status
birdc show interfaces

birdc show protocols
birdc show protocols all <bgp_protocol-peer-asn>    # Check specific BGP Status in details

birdc show static
birdc show static static_bgp                        # Show static BGP announcement

birdc show route
birdc show route export <bgp_protocol-peer-asn>     # Show specific BGP Exported route

Control Specific Protocol

birdc reload <protocol> | "<pattern>" | all         # Reload protocol
birdc restart <protocol> | "<pattern>" | all        # Restart protocol
birdc disable <protocol> | "<pattern>" | all        # Disable protocol

Add / Remove ROA

birdc add roa <prefix> max <num> as <num> [table <name>]        # Add ROA record
birdc delete roa <prefix> max <num> as <num> [table <name>]     # Delete ROA record

BGP With FRRouting