nanog mailing list archives

Re: BGP Session


From: Abuse Contact <stopabuseandreport () gmail com>
Date: Sat, 19 Jul 2014 10:35:33 -0700

Yeah, that's probably the best idea in this situation. I've been really
interested in BGP but didn't know where to start, I'll read all the books
that you guys put up above and start reading them.
Also, referring to what you said
"If you are not peering with TATA, then your routes would not go to TATA
first.  (unless the next-hop is indirect and that brings up other
fundamental routing things that you should learn about)"
Yeah, I meant that if I was getting a Transit service from them. Like, if
using a DC like Equinix, you have access to countless amounts of
opportunities to use Transits from virtually any provider, if I were to
contact TATA and ask for a transit, I'd set that up in BGP, but I'm
confused on how. I'll look into Fundamental routing.

Thanks!


On Sat, Jul 19, 2014 at 10:29 AM, Scott Morris <swm () emanon com> wrote:

Fundamental routing training would greatly help you here.  I would suggest
looking for that.

If you are not peering with TATA, then your routes would not go to TATA
first.  (unless the next-hop is indirect and that brings up other
fundamental routing things that you should learn about)

AS13335 is not TATA.  So if this is what your provider gave you, one first
assumes you¹d be directly connected to them (that¹s one of the rules in
BGP¹s RFC for external connections)..  If you have multiple providers, you
may have multiple peers.  Each one would give you information.

But like others have stated, I would strongly suggest you stop your
testing for the moment and either hire someone to help or take some time
to learn the basics on there.  Otherwise, successful or not, your testing
will really have no meaning to you.

Just my two cents.

Scott


-----Original Message-----
From: Abuse Contact <stopabuseandreport () gmail com>
Date: Saturday, July 19, 2014 at 1:12 PM
To: Jonathan Lassoff <jof () thejof com>
Cc: "nanog () nanog org" <nanog () nanog org>
Subject: Re: BGP Session

Yeah, we're using it for an anycasted node but like, I'm confused on
certain parts like, just a really basic question.
When doing things like

conf t
router bgp AS1337

neighbor 208.54.128.0 remote-as AS13335
neighbor 208.54.128.0 description BGP with Upstream
neighbor 208.54.128.0 password "lolpass"

address-family ipv4
no synchronization
neighbor 208.54.128.0 activate
neighbor 208.54.128.0 soft-reconfiguration inboung

I'm confused on when doing this, would I need to state like

First go to AS13335 then go to TATA then go to my server or would it just
automatically do that or would my provider do that? I'm confused on that.
how would I state multiple peers.....?


On Sat, Jul 19, 2014 at 10:06 AM, Jonathan Lassoff <jof () thejof com>
wrote:

An Anycasting node. For example, as part of a reliable DNS service.
A /24 is usually the smallest prefix length that is portably accepted.

Also, applications where connections need to appear to be coming from
many
source IPs.


On Saturday, July 19, 2014, Suresh Ramasubramanian <ops.lists () gmail com

wrote:

A single linux box with a whole /24 on it? What sort of use case is
that,
BTW?
 On 19-Jul-2014 10:26 pm, "Abuse Contact"
<stopabuseandreport () gmail com>
wrote:

I know, the DC is going to be giving me a BGP session on their router
so I
can set it up, I'm not using a Linux server as a router.


On Sat, Jul 19, 2014 at 9:04 AM, William Herrin <bill () herrin us>
wrote:

On Wed, Jul 16, 2014 at 4:05 AM, Abuse Contact
<stopabuseandreport () gmail com> wrote:
So I just purchased a Dedicated server from this one company and
I
have a
/24 IPv4 block that I bought from a company on WebHostingTalk,
but
I am
clueless on how to setup the /24 IPv4 block using the BGP
Session. I
want
to set it up to run through their network as if it was one of
their
IPs,
etc. I keep seeing things like iBGP (which I think means like a
inner
routing BGP) and eBGP (what I'm talking about??) but I have no
idea
how
to
set those up or which one I would need.

Howdy,

Unless you have (1) a real router available, not a just a server
and
(2) an expert available to help you with your first BGP
configuration
I strongly recommend you simply ask your service provider to
announce
the /24 to the Internet on your behalf.

Server-based BGP software like Quagga for Linux is reasonably good
but
it should absolutely not be involved in your _first_ attempt to
connect with the Internet's default-free zone. Simple mistakes with
eBGP can cause tremendous damage to other folks on the Internet.
Trial
and error is simply not OK. If it isn't worth it to you to buy a
BGP-capable router then you also aren't prepared to make the
investment in learning it takes to use BGP without causing harm.

Regards,
Bill Herrin


--
William Herrin ................ herrin () dirtside com
bill () herrin us
Owner, Dirtside Systems ......... Web: <http://www.dirtside.com/>
Can I solve your unusual networking challenges?









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