04-01-2026 05:03 AM
Dear Community,
I am trying to set up a BMP Server in my network. But I am no getting any data from it. So far my target server has a wireshark running to see if there is any data incoming. I don't see any communication at all.
The public IP addresses have been masked and also the public ASN. So far I am getting everything which is BGP related. It's just the BMP part that gives me a headache.
My setup:
interface GigabitEthernet0/0/0
vrf forwarding Mgmt-intf
ip address 10.10.12.12 255.255.0.0
negotiation auto
!
interface GigabitEthernet0/0/1
ip address 198.51.100.1 255.255.255.252
negotiation auto
!
router bgp 65001
bmp server 1
address 10.10.10.185 port-number 10079
description BMP Monitor
initial-delay 20
failure-retry-delay 40
flapping-delay 120
stats-reporting-period 30
update-source GigabitEthernet0/0/1
set ip dscp 5
exit-bmp-server-mode
!
bmp initial-refresh delay 30
bgp log-neighbor-changes
neighbor 198.51.100.2 remote-as 3333
neighbor 198.51.100.2 password 7 <password>
!
address-family ipv4 vrf Mgmt-intf
network 10.10.0.0 mask 255.255.0.0
neighbor 10.10.10.185 remote-as 65001
neighbor 10.10.10.185 bmp-activate server 1
neighbor 10.10.10.185 activate
exit-address-family
Thank you for your help on this!
-andreas
Solved! Go to Solution.
04-01-2026 05:49 PM - edited 04-01-2026 08:12 PM
Hi @acahen ,
There is a few things you need to change in the configuration.
1. I do not think the bmp client works inside a VRF context. So you should remove the vrf from interface gi0/0/0 for the session to come up between the bmp client and server.
2. You need to activate the bmp server by adding the activate command under the bmp server 1 configuration as follow:
router bgp 65001
bmp server 1
activate
3. if you want to monitor the bgp session between router ISP and C8300, you need to configure the following:
router bgp 65001
neighbor 198.51.100.2 bmp-activate server 1
One more thing. Your diagram shows gi0/0/0 as the interface facing the ISP, while config shows that same interface as facing the bmp server, so the update-source should be gi0/0/0.
04-01-2026 05:49 PM - edited 04-01-2026 08:12 PM
Hi @acahen ,
There is a few things you need to change in the configuration.
1. I do not think the bmp client works inside a VRF context. So you should remove the vrf from interface gi0/0/0 for the session to come up between the bmp client and server.
2. You need to activate the bmp server by adding the activate command under the bmp server 1 configuration as follow:
router bgp 65001
bmp server 1
activate
3. if you want to monitor the bgp session between router ISP and C8300, you need to configure the following:
router bgp 65001
neighbor 198.51.100.2 bmp-activate server 1
One more thing. Your diagram shows gi0/0/0 as the interface facing the ISP, while config shows that same interface as facing the bmp server, so the update-source should be gi0/0/0.
04-02-2026 04:03 AM
Hello Harold! You've pointed me into the right direction. I just need to setup the BMP collector now. And you were right. I missmatched the interfaces on the schematic.
Regards,
Andreas
04-02-2026 05:53 AM
You are very welcome @acahen and thanks for the feedback.
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