BGP.guru

One of the many tasks that I do quite often is subnetting.

The traceroute: $ tcptraceroute -q1 ciscodude.net Selected device eth0, address 10.xx.xx.5, port 36975 for outgoing packets Tracing the path to ciscodude.net (206.220.195.237) on TCP port 80 (http), 30 hops max 1 10.xx.xx.254 0.399 ms 2 198.62.164.2 0.4…

I have been doing a lot of reading about exabgp. exabgp is a python BGP implementation which doesn’t implement any host routing functionality at all, just transforms BGP messages into plain text or JSON which can be easily manipulate by scripts.

Why do we need IPv6?

I’ve joined forces with a group of local IPv6 experts at local Hackerspace, SkullSpace, to form an IPv6 Task Force.

I’ve had CiscoDude.net and its associated services IPv6 enabled over native IPv6 for the past year.

Another huge blunder this week in the ubiquitous OpenSSL library secadv.

I just noticed that Observium released a new Community Edition release (0.14.4) on April 1.

I’ve moved up in time/history to the 1980’s with Python – INI files!

Yesterday afternoon, starting at 2:05PM local time, I received several notices about our prefixes being hijacked – announced by an ASN other than our own.

I’ve heard a lot about python, its certainly a very popular language on Github, and I’ve been wanting to learn it for quite a while.

While I wrote about IPAM last January, I never finished setting up everything in subnetsmngr.

XKCD is an awesome webcomic of romance, sarcasm, math, and language.

I set out to test the connection between my house and my development workstation, using VOIP-like settings, and IPv6, just to say I’d done it. client side: $ iperf -c dev.ciscodude.net -V -u -b 64k -l 160 --------------------------------------------------…

When learning programming, beginners are always taught that goto’s are dangerous.

I’ve long been a fan of IP Chicken, however it isn’t anycasted, and it doesn’t support IPv6.

Having put an IP address on the management card of a APC Symmetra RM 12000 recently, I set out to setting up Nagios to monitor it today.

This page is outdated.

I used Brocade equipment for the first time this week.

One of the responsibilities of a ISP is to have various working role email accounts.

On a non-networking related note.

I’ve switched to using a new site/blog engine, Octopress.

Unless you’ve had your head stuck in the sand for the last few years, you’ve no doubt heard of IPv4 exhaustion by now.

I am now doing AnyCast with IPv4/IPv6 on henchman21.net.

The Issue There are several methods to utilize multiple internet connections and fail over in the event of a failure.

BGP is an awesome tool.

I opened an account on github earlier this year.

I ran into a very interesting issue this week troubleshooting a UDP stream that a client was trying to stream from one side of the continent to the other.

I haven’t been writing as many blog posts lately as I should, and this is partly because of the change in season, but also because I have been involved with starting the Winnipeg Internet Exchange (WpgIX).

I was browsing /r/ipv6 this morning and I felt like writing up my IPv6 implementation experiences.

Unless your network admin has had his/her head in sand hill for the past few years, filtering spoofed traffic from leaving one’s own network is something that should be of concern.

Having recently setup BGP for a new IPv6 space, I wanted to make sure that IPv6 wasn’t a “second class citizen” on the network, so it needed to be routed redundantly internally as well.

One of the really handy things that has been included in OpenBSD for quite some while, is a handy shell, and CGI BGP looking glass.

I’ve used Cacti for the past 10 years roughly, and it has served me well.

This afternoon I setup nginx to act as a pop3/imap/smtp proxy w/ SSL.

Its been a while since I had an MX record, half due to connectivity, half due to lack of yet another email address.

After a recent discussion about IP Address Management (IPAM) software for small ISPs on the NANOG mailing list, I decided to setup subnetsmngr for my ISP.

So if you have IPv6 you’re probably wondering… so now that I’m here… what’s on it?

There are a few steps required to enable full support for IPv6 on a Cisco Catalyst 3560 or 3750.

I have had a few friends (who ended up wimping out and installing either via scsi cdrom, or by writing the miniroot.fs to the swap partition) ask how to do a netboot install of OpenBSD on sparc or sparc64 architecture.