Home page logo

nanog logo nanog mailing list archives

RE: BGP noob needs monitoring advice
From: "Michael K. Smith - Adhost" <mksmith () adhost com>
Date: Tue, 20 Dec 2011 18:57:28 +0000


Manually speaking, you can always telnet to route-views.routeviews.org which is a restricted Cisco interface.  Log in 
with username "rviews" and don't enable.  From the prompt you can do all the "show ip bgp" commands you need to see 
whether or not your /24 is being announced via your upstream providers.  As an example 'sho ip bgp x.x.x.x' where 
x.x.x.x is your /24.  You should see the announcement originating from your AS over multiple providers that includes 
both of yours.  If not, you know you have a problem.


Michael K. Smith - CISSP, GSEC, GISP
Chief Technical Officer - Adhost Internet LLC mksmith () adhost com
w: +1 (206) 404-9500 f: +1 (206) 404-9050
PGP: B49A DDF5 8611 27F3  08B9 84BB E61E 38C0 (Key ID: 0x9A96777D)

-----Original Message-----
From: Dave Pooser [mailto:dave.nanog () alfordmedia com]
Sent: Tuesday, December 20, 2011 10:53 AM
To: nanog () nanog org
Subject: BGP noob needs monitoring advice

Earlier this year I got a /24 of PA space, set up our shiny new router,
got BGP working with both my upstreams, and heaved a sigh of relief: "I'll
never have to think about THAT again!" (Okay, quit laughing; I SAID I was
a noob!)

Now, I discover that one of my upstreams quit announcing our route in
November (fortunately the provider who assigned us the /24, so we're still
covered in their /18) and the other upstream apparently started filtering
our announcements last week. I'm working with both of them to get that
fixed, but it's made it clear to me that I need to be monitoring this.

My question for the group is, how? I can and do monitor my own router, and
I can see that I'm receiving full routes from both ISPs. I am capable of
manually accessing route servers and looking glass servers to check if
they're receiving routes to me, but I'd like something more automated.
Free is nice, $$ is not a problem, $$$$ might become a problem.

Thanks in advance for any suggestions.
Dave Pooser
Manager of Information Services
Alford Media  http://www.alfordmedia.com

  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]