FastNetMon has complete support for GoBGP for BGP announce and includes compatible GoBGP in our official packages.
NB! For FastNetMon Advanced edition please use this guide instead.
Next version of FastNetMon Community will use gobgp_3_12_0, please changed command paths accordingly.
We have following configuration options for GoBGP in /etc/fastnetmon.conf:
gobgp = on gobgp_next_hop = 1.2.3.4 gobgp_announce_host = on gobgp_announce_whole_subnet = off
To establish BGP session with your network equipment you need to create configuration for GoBGP in /etc/gobgpd.conf file:
[global.config]
as = 65001
router-id = "192.168.1.134"
[[neighbors]]
[neighbors.config]
neighbor-address = "192.168.1.188"
peer-as = 65001
[neighbors.ebgp-multihop.config]
enabled = true
[[neighbors.afi-safis]]
[neighbors.afi-safis.config]
afi-safi-name = "ipv4-unicast"
[[neighbors.afi-safis]]
[neighbors.afi-safis.config]
afi-safi-name = "ipv6-unicast"
[neighbors.transport.config]
local-address = "192.168.1.134"
Run it:
sudo /opt/fastnetmon-community/libraries/gobgp_2_16_0/gobgpd -f /etc/gobgpd.conf
After that, you will see following log message when BGP session was established successfully:
{"Key":"192.168.1.188","State":"BGP_FSM_OPENCONFIRM","Topic":"Peer","level":"info","msg":"Peer Up","time":"2020-05-24T14:42:12+01:00"}
You may check neighbor’s status this way:
/opt/fastnetmon-community/libraries/gobgp_2_16_0/gobgp nei 192.168.1.188
Example output:
BGP neighbor is 192.168.1.188, remote AS 65001
BGP version 4, remote router ID 192.168.1.188
BGP state = ESTABLISHED, up for 00:01:24
BGP OutQ = 0, Flops = 0
Hold time is 90, keepalive interval is 30 seconds
Configured hold time is 90, keepalive interval is 30 seconds
Neighbor capabilities:
multiprotocol:
ipv4-unicast: advertised and received
ipv6-unicast: received
route-refresh: advertised and received
4-octet-as: advertised and received
Message statistics:
Sent Rcvd
Opens: 1 1
Notifications: 0 0
Updates: 0 0
Keepalives: 3 4
Route Refresh: 0 0
Discarded: 0 0
Total: 4 5
Route statistics:
Advertised: 0
Received: 0
Accepted: 0
Check announced routes:
/opt/fastnetmon-community/libraries/gobgp_2_16_0/gobgp global rib
Network Next Hop AS_PATH Age Attrs
*> 192.168.1.1/32 0.0.0.0 00:00:08 [{Origin: ?}]
Announce custom route:
/opt/fastnetmon-community/libraries/gobgp_2_16_0/gobgp global rib add 10.33.0.0/32 -a ipv4
Withdraw route:
/opt/fastnetmon-community/libraries/gobgp_2_16_0/gobgp global rib del 10.33.0.0/32 -a ipv4
To control BGP announces directly from FastNetMon you may consider using command line tool.