3.12.2 BGP and Routers configuration

Specific IRP instance BGP daemon-related parameters can be configured under the “Configuration→BGP” tab.

• Bgpd parameters:
  →  BGP mode intrusive/non-intrusive (global.nonintrusive_bgp)
  →  BGP monitor enabled/disabled, this option is useful during DoS/DDoS attacks. Bgpd ICMP / SNMP monitors can be disabled on the fly, without restarting the Bgpd daemon.
  →  AS-Path attribute a restore priority (bgpd.as_path)
  →  Remove prefixes on next-hop update (bgpd.improvements.remove.next_hop_eq)
  →  Remove prefixes on aggregate withdraw (bgpd.improvements.remove.withdrawn)

• BGP monitoring settings:
  →  Guard time (bgpd.mon.guardtime)
  →  Holdtime (bgpd.mon.holdtime)
  →  Keepalive (bgpd.mon.keepalive)

Figure 3.12.6: Configuration editor: BGP settings

• General settings: #

  →  ASN to be used for the iBGP session (bgpd.peer.X.as)
  →  Announced local-pref value (bgpd.peer.X.master_localpref)
  →  Local IP address (bgpd.peer.X.master_our_ip, bgpd.peer.X.master_our_ipv6)
  →  Neighbor IP address, usually the router’s IP (bgpd.peer.X.master_peer_ip, bgpd.peer.X.master_peer_ipv6)

Figure 3.12.7: Configuration editor: New Router, general settings

• Advanced settings: #

  →  BGP session password
  →  Improvement communities to be appended to the Communities attribute(bgpd.peer.X.master_communities)
  →  Keepalive (bgpd.peer.X.keepalive)
  →  Announced MED value (bgpd.peer.X.med)
  →  BGP Router ID, mandatory for IPv6 only (bgpd.peer.X.slave_router_id)

Figure 3.12.8: Configuration editor: New Router, advanced settings

• Inbound settings:
  #

  →  Local inbound next_hop ( bgpd.peer.X.inbound.ipv4.next_hop )
  →  Announced inbound LocalPref value ( bgpd.peer.X.inbound.master_localpref )
  →  Transit SNMP hosts (bgpd.peer.X.transit.snmp )
  →  Transiting traffic toggle ( global.inbound_transit)

Figure 3.12.9: Configuration editor: New Router, Inbound settings

• Blackholing:
  #

  →  Announced blackholing localpref value
  →  Blackholing IPv4 next hop
  →  Blackholing IPv6 next hop

Figure 3.12.10: Blackholing configuration settings