Stack Overflow
Stack Overflow

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

Border Gateway Protocol(BGP) is how the Internet routes traffic between routers. BGP advertises routes for a given IP and selects the best one for the traffic. The current version of the Border Gateway Protocol (BGP) which is BGP-4 is described in RFC4271 (https://tools.ietf.org/html/rfc4271).

Questions about the various BGP scripting languages are on-topic. Questions about BGP (routing, hardware, etc.) in general are not. Sites where you can ask broader BGP questions include

130 questions
-1
votes
1 answer

Juniper SRX add custom BGP route

I have BGP configured between AzureStack (win2k16) and SRX210. On the Juniper I see all routes advertised but the Juniper is only advertising its physical interface networks.. I want the Juniper to also include all static routes that are configured…
Roelf
  • 9
  • 1
-1
votes
1 answer

What is the expected behavior of set-prepend-local-as in BGP?

I have a situation as below: Consider my local AS value is 65002 and the neighbor AS has value 333. If my AS path shows the value as AS_PATH:65002 333, then on using set-prepend-local-as as 2, what is the expected behavior in AS_PATH value? Should…
Vijaykumar Ainapur
  • 95
  • 8
-1
votes
1 answer

BGP peers established in SDN

I downloaded a routine from github about interconnection about traditional network with sdn. The program establishes ibpg peers. When I run the program, there is a problem occurred shown as follows. How can I deal with this trouble?
leo zou
  • 1
-1
votes
1 answer

opendaylight bgp-linkstate not making "loc-rib"

ODL version: Carbon I'm having a problem with getting BGP-LS into the Network Topology. As you can see from below REST output, I set up "bgp-example" and homed to an external eBGP linkstate peer. "effective-rib-in", "adj-rib-in", and "adj-rib-out"…
heidebock
  • 13
  • 4
-1
votes
1 answer

Use of Loopback interface in iBGP

As I understand that the loopback interface(127.0.0.1) is used to route packets back to the source. How is it then used to talk to iBGP neighbors? I understand that the goal is to ensure that the interface doesn't go down, so using an…
zonked.zonda
  • 347
  • 1
  • 5
  • 19
-1
votes
1 answer

OpenSSL Libraries with Quagga

We are looking to work with openSSL libraries within Quagga Open Source routing engine. However looking at the installation of openSSL I have, I can't see any .c files at all. Just a whole lot of .h files in /usr/include/openssl. Also - I can't seem…
Sarah
  • 1
  • 1
-2
votes
1 answer

How to mitigate BGP hijacking attack?

BGP hijacking attack (i.e., an adversary falsely announces a network prefix which is not owned by the adversary) looks pretty straightforward and easy to launch. Then, is there any way to mitigate this attack? Detecting false BGP announcements is…
qpfaos
  • 1
-2
votes
1 answer

Special Routing Plolicy using BGP

Assume I have 2 ASs (AS1, AS2). The topology looks like this. RA1.1 --- RA2.1 --- RA2.2 where RA1.1 is a router in AS1 and the other 2 routers belong to AS2. There is a eBGP session between RA1.1 and RA2.1 and an iBGP session between RA2.1 and…
Bakyr
  • 1
-2
votes
2 answers

Setting up BGP Layer Using Scapy

I am trying to use Scapy to send packets that have a BGP layer I am currently stuck on a rudimentary part of this problem because I am unable to set up the BGP layer. I followed the instructions to set up the regular IP and TCP…
James Butler
  • 1
  • 1
  • 4
1 2 3
…
8
9