Questions tagged [bgp]
BGP (Border Gateway Protocol) is a routing protocol that is primarily used to make routing decisions on today's internet. Questions must be about scripting BGP only. General BGP questions may be asked on https://serverfault.com or https://networkengineering.stackexchange.com
128
questions
-1
votes
1
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168
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Dynamic Routing on GCP with WireGuard [closed]
TL;DR; is it possible to advertise BGP routes to a GCP Cloud Router over a WireGuard tunnel?
Details below.
Programmatic Approach
I am using terraform to manage GCP-based resources.
Network Setup
I ...
- 792
0
votes
0
answers
29
views
Cilium Control Plane BGP advertises /32 mask for service
I'm using BGP Control Plane. It's working well.
But our network engineers restrict receiving routes below mask /24.
And Cilium announces the addresses of services with /32 mask. Is it possible to ...
- 35
0
votes
0
answers
37
views
AS-Path Modification on BGP Neighbors
In my network, I have four routers (R1, R2, R3, and R4), and I am utilizing BGP for routing.
The objective is to ensure that all traffic from R4 to the destination 8.8.8.8 follows the path through R3 ...
0
votes
1
answer
122
views
Issue turning leased IP /24 Block into a reverse proxy
Objective: I want to create a forward proxy server that when I connected from my machine to it, I can use any of the leased IPs I have leased outbound.
The long story....I leased a /24 IP block from ...
- 3
0
votes
0
answers
125
views
Trouble Configuring BGP on Cisco IOS-XE using Terraform
so I am struggling to do a PUT so I can configure a bgp asn on my Cisco catalyst 8000v deployed on AWS
provider "iosxe" {
username = "ec2-user"
password = "password"
...
- 149
0
votes
2
answers
225
views
Issue with Juniper vMX14 route reflector not transmitting VRF
I am working on a project implementing Seamless MPLS on a Juniper vMX14 router. I have configured all the necessary configurations for MPLS routing, but I am having an issue with the route reflector. ...
0
votes
1
answer
257
views
Configuring BGP between 3 routers in GNS3 throws an error
For a school assignment we have use GNS3 to set up 3 routers in a circle to communicate with BGP and hook up a PC to each of them. We then have to try pinging one PC from the other and suspending a ...
-1
votes
1
answer
104
views
Can routing entries in EVPN VxLAN be shared between different VRFs?
When I built the EVPN VxLAN simulation environment in GNS3, I found that the learned overlay routing entries and underlay routing entries are as follows for SW-1:
Test TOPO
SW-1# show ip route
Codes: ...
1
vote
1
answer
111
views
Can't specify AS_PATH attribute in BGP packet [Scapy]
When using Scapy, I am unable to set the AS_PATH attribute. I have tried following the answer provided in this StackOverflow page How to use AS_PATH attribute in scapy for BGP?, but it did not work. I ...
0
votes
1
answer
103
views
AWS direct connection - multiple subnets from datacenter
I'm having trouble trying to figure out how to get the datacenter subnets to talk to aws via direct connect using BGP. Below is the setup.
Datacenter Router - Cisco ASR 1001-hx
Datacenter subnets
VLAN ...
- 43
1
vote
0
answers
281
views
Go: How to read in MRT (.bz2) file as byte and parse data
I am trying to read in an mrt (with .bz2 file extension) from archive.routeviews.org namely file - http://archive.routeviews.org/route-views.chile/bgpdata/2022.05/UPDATES/updates.20220501.0000.bz2.
I ...
- 43
0
votes
1
answer
378
views
AWS <-> GCP S2S VPN with dynamic routing - filtering/priority adjustments
I need to setup S2S VPN between AWS and GCP clouds. This needs to work in High Availability and use dynamic routing.
On AWS side I have a Transit Gateway with number of VPC networks attached to which ...
- 1,370
0
votes
1
answer
113
views
Looking for a way to verify that an upstream router is publishing my route
I am developing a product feature which allows a user to publish a VIP from our product to their own infrastructure via BGP. To achieve this we run FRR on all control plane servers. FRR is configured ...
- 121
0
votes
1
answer
235
views
How to use AS_PATH attribute in scapy for BGP?
I try to set the AS_PATH attribute:
setAS=BGPPathAttr(type_flags="Transitive", type_code="AS_PATH",attr_len=None,attribute=None)
But Wireshark is saying that it is a malformed ...
0
votes
1
answer
223
views
How to resolve the issue with BGP Peering with Opendaylight
I`m building a BGP peering between Cisco router (BGP RR-Client) and OpenDaylight (BGP-RR), (ODL - Oxygen release) using the following REST/XML configuration and Postman API call.
Cisco router, as well ...
- 1