1
vote
0answers
45 views

Redundant Debian Gateway

I have to configure a redundant gateway with Debian boxes and I would like to get some recommendation what's the best solution in my case. There are certain limitations in my setup and I have to go ...
1
vote
1answer
23 views

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 ...
0
votes
0answers
25 views

Restarted BGP routers have no routing updates?

I configured 3 cisco c3725 Routers in GNS3 and I setup BGP and it was working fine at first. All 3 routers are connected to each other and each router has some loopback interfaces wich are the ...
0
votes
1answer
504 views

Simple Vyatta configuration / BGP routes not injecting into routing table

I have a exceptionally simple setup I'm playing with however I'm banging my head against the wall as to why it's not working. Right now I have two Vyatta routers (R1, R2) connected locally. Both are ...
1
vote
1answer
296 views

Internet Routing with BIRD

I am testing BIRD to put into production to replace several VPN appliances I am using to route to my AWS site. I've never used BIRD before so please forgive ignorance/ If I put a test windows ...
0
votes
2answers
142 views

Understanding traceroute-result / the connections between ISP-networks

I was playing with traceroute and discovered that I have a gap in my knowledge on how the Internet works. So, in order to get a better feeling for what happens when I connect to a host, I think I ...
3
votes
1answer
373 views

Linux “traceroute -A” (AS path lookup) equivalent for Win XP?

Can anyone recommend a Win XP command-line traceroute implementation providing a function equivalent to the Linux "traceroute -A" option, which includes in its output the BGP AS number (Autonomous ...
1
vote
1answer
669 views

openbgpd: announcing our prefix

i use quagga as active for bgp4 but i am searching openbgpd. I installed openbgpd on freebsd. i am new at openbgpd. I have an AS and also my customer's AS. I have 2 IPSs for internet. how can i ...
2
votes
2answers
121 views

Border Gateway Protocol [closed]

I'm moving our company out of managed hosting into our own colocation. I have a variety of high quality options for bandwidth and my network consultant suggests we run BGP with multiple providers in ...
0
votes
0answers
169 views

BGP network command route announcement

I have defined 3 AS (1000 <---> 2000 <---> 3000). Every AS has one router with 2 fa interfaces and one loopback. After starting bgp on all interfaces and announcing networks with commands: ...
3
votes
2answers
329 views

How any routing protocol packet reaches(flows of operations) from NIC card (physical layer) to any Routing (OSPF/RIP/BGP) daemon?

The problem is rearding the routing protocol packet flow in any linux/unix device where multiple routing protocol daemons are running. How any routing protocol packet reaches(flows of operations) ...
4
votes
1answer
427 views

Need to find users of ASN in my country

Anyone knows where I can get list of Autonomous system number users by country ? If it is not possible to get it by country, any kind of list will suffice. thnx
2
votes
2answers
403 views

Network outage - Mapping, Checking network, BGP, Traceroute, RIPE

At first, I'm not able to name my question properly, so this will be adjusted I recently experienced an international network gap. Mean when some part of world wide network is unavailable. I'm ...
2
votes
2answers
258 views

What routing protocol to use with MPLS?

My MPLS provider is giving us a choice to use static routes or BGP for our new MPLS setup. What are advantages/disadvantages of the 2 choices? What is more commonly used?
1
vote
1answer
584 views

Cisco BGP clustering and route reflection configuration example

I am trying to make sure that I have this correct in my own mind how the Cisco configuration would be given the following example of route reflection and clustering with BGP. If you have three AS 1, ...
9
votes
3answers
2k views

How are IP addresses actually assigned?

I'm having a hard time understanding how a governing body assigns IP addresses, companies use BGP to advertise those IPs, and how the internet works. Then, where the hell does DNS come in? Can ...
8
votes
5answers
4k views

Freebsd or Linux? as BGP router over 100mbps

I am building a server to act as a BGP border router for my 100mbps uplink in ISP. I needs these feature: 1) Dual stack BGP peering/routing (at least 100Mbps, maybe more). 2) Potential full internet ...
3
votes
5answers
23k views

What is the difference between BGP and OSPF?

I want to setup a dynamic routing network´╝î I want to know, What is the difference between BGP and OSPF ? Does both two need to be used together commonly ?
4
votes
1answer
692 views

Quagga keeps announcing down routes

I have set up BGP on two routers using qugga. When I down the interface that holds the IP block that I am advertising zerba removes the route from its table but bgpd keeps advertising it. I can see ...
5
votes
4answers
1k views

Best way to improve resilience?

One of the major projects I have lined up for 2010 is attempting to mitigate some of the Single Point of Failures (SPOFs) in a network I currently manage. We currently have a single datacentre rack ...
0
votes
3answers
372 views

Third party failover load balancing

Are there any third-party companies that provide a single IP address which is load-balanced over two IP addresses owned by the end customer? We are based in the UK. I need to provide a solution to my ...
3
votes
6answers
307 views

Making hosted applications resilient to BGP failures

My company builds various web sites for its customers with a dedicated hosting provider. This hosting provider accidentally shutdown the devices responsible for Border Gateway Protocol (BGP) ...
3
votes
2answers
914 views

When using traceroute -A, where does the ASN come from?

I haven't cracked open the source code yet, but I was curious which whois service the traceroute program uses to look up ASNs for a given IP.