June 2012

BGP AS List and potaroo

Sat, 2012-06-02 14:23

Have you ever wanted to see a list of all the BGP Autonomous Systems Numbers and what organization they are associated with? I did this morning and after some searching, here's what I found.

There is a cool website (cool in a nerdy BGP statistics sort of way) called potaroo.net that is "the personal site of Geoff Huston." The site has a blog and provides links to a variety of statistical analyses and reports on Internet BGP data. No surprise that Geoff appears to work at APNIC.

CBT: Cisco for the Real World

Sat, 2012-06-02 14:59

I am having issues opening the topology.net files on GNS3 uploaded to nuggetlab.com
when I open that file it tries to search for the ios image and it says it can't find it...i edited the topology.net file with notepad and pointed it to the location of the ios image, but it still says it can't find the image and I get no option to search for it.
are we supposed to create this topology from scratch or use the config / topology.net that Jeremy already gave us with the series?

by the way..I do have the IOS images available for all the labs.

Thanks in advance!!

Cisco layer 3 switch model for smb networks

Wed, 2012-06-06 01:18

hi! please help. can u please provide me a cisco layer 3 switch model for smb networks?. capable of 10/100/1000 base -t, intervlan and dhcp redirection(ip helper). thanks!

Book for 642-813

Wed, 2012-06-06 17:18

Hello Group,

Access server and/or frame relay switch on a 2612?

Thu, 2012-06-07 07:55

Hi all.
I've just bought two 2612 and realised that they aren't supporting Fast ethernet :(

I'd like to recycle one of them as an access server by buying a NM-16A. and the second one as a frame relay switch with an NM-8A/S.
Do you think this will work? Are those compatible?
Cheers
Alex

New CCNP Security

Thu, 2012-06-07 11:31

Jeremy,
Can you give us the scoop on CBT Nuggets plans for covering the new CCNP Security exams? Watching your CCNA for the Real World is inspiring me to pursue this route. I see that Michael Shannon covered the last videos... He's great and all but, you're my Cisco dude! Please tell me you are doing them!

Cisco Live 2012 Logo

Sat, 2012-06-09 17:33

Cisco Live 2012

Sat, 2012-06-09 17:33

I have arrived! Here's what I've got so far:

Registration is a breeze.

There are Cisco people everywhere directing traffic, even in the hotel lobby.

The bus is a little slow, but beats walking uphill.

Weather is perfect! Why don't I live here yet?

Keep checking back, more to come...

ICND2 videos by Jeremy

Sun, 2012-06-10 08:33

I needed to brush up on my networking skills for a job interview and went looking for videos on YouTube. After watching a few random videos, I found a great series that was very professionally made. It was so good, that after watching a few, I began to wonder why these were on YouTube under a channel named
CiscoSyst3ms
that didn't appear to have any connection to the trainer. In ICND2 video 7, there is a moment where Jeremy's start menu is visible for a moment. It shows his name, so I did a google search and found both CBTNuggets and this site. Suddenly, all the pieces came together, and I realized that the CBTNuggets videos had been pirated and posted on YouTube.
This is a link to one of the YouTube postings:
http://www.youtube.com/watch?v=6d7yYOb6S_U&feature=relmfu

Routing Loop - SVIs - eigrp, ospf

Sun, 2012-06-10 14:13

I created the following topology in PacketTracer as I work with similar configurations.

TOPOLOGY: http://img819.imageshack.us/img819/8838/vlan1.png

I wanted to test many different options and scenarios.

As you can see I have two L3 switches with some vlans, all routers and L3 switches are running EIGRP. Routers to L3 switches are connected using a routed port. Life is great, but when I disconnect the primary link (which in my situation is the serial link between RQ01 and RLON01, eigrp creates a loop. Why? I guess because I advertised all svi's on both switches. A few show commands to make it easier to understand (after removing the primary link)

SQ01# sh ip route

Gateway of last resort is 210.2.1.205 to network 0.0.0.0

1.0.0.0/30 is subnetted, 1 subnets

ciscolive2012.com-down.png

Sun, 2012-06-10 22:35

CiscoLive2012.com Down?

Sun, 2012-06-10 22:38

Ciscolive2012.com down? I'm guessing everyone is trying to download their PDFs since we didn't get them on a USB flash drive this year...

The iPhone app isn't loading either. I tried to save some paper by just using the iPhone app. Hope it's up tomorrow, I'd like to get to my schedule so I know which sessions to go to.

Update: Looks like they fixed the issue over night. Just in case it happens again, I've emailed myself the schedule.

Cisco Live Lunch

Mon, 2012-06-11 12:00

How to feed an army of networkers.

2 ips on one interface

Tue, 2012-06-12 08:30

I have windows server that on one interface I configured 2 ips.
let's say 10.170.50.4 and 10.170.50.8 same netmask 255.255.255.0 GW 10.170.50.1
I want to know if I have 2 ips and I try to refer one of them if i will have problems
example refer to 10.170.50.4 and get a response from 10.170.50.8
and socket will not open ... ?

Cisco Live 2012 - First Day Review

Tue, 2012-06-12 08:31

The first full day at Cisco Live 2012 was a blast! I picked up quite a bit of info on MPLS (stay tuned for a future blog about that). Also, I met Terry Slattery who is a tremendously nice guy and for those who don't know, is a distinguished CCIE.

The World of Solutions is great, lots of great vendors and booths. Tons of free t-shirts and trinkets. And of course the free food and beverages are nice too. The WoS is always well done and this year is spot on.

The wireless systems at CLUS have been plagued up to this point. They were working hard on it though and have said they've rectified the issues. We'll see how the rest of the week goes, hopefully a little smoother.

IPv6 for the CCIE R&S Candidate - Session Notes

Tue, 2012-06-12 19:28

Today I attended the IPv6 for CCIE R&S session presented by Johnny Bass, CCIE #6458 and Cisco 360 master instructor. Totally awesome presentation! I jotted some notes and figured I’d post them here to share.

All the content in the session (BRKCCIE-9592) is regarding the R&S 4.0 version blueprint. “If it’s not in the blueprint, it’s not in this session”

Different Addressing Types

2000::/3 – Global Unicast
FC00::/7 – Unique Local Unicast
FE80::/10 – Link Local Unicast
FF00::/8 – Multicast

Prefix	Subnet	Interface/Node ID
32 to 56 bits	32 to 8 bits	64 bits

Note: The interface ID can be either EUI-64, use Privacy Extensions (RFC 3041), or locally configured.

Networking Nerd

Tue, 2012-06-12 19:36

Just met Tom Hollingsworth randomly in the hallway. Here's a shout out to "the" networking nerd. Check out his blog: http://networkingnerd.net

Frame Relay for the R&S CCIE Candidate - Session Notes

Wed, 2012-06-13 09:52

Attended the Frame Relay Session for R&S CCIE Candidates Wednesday morning. The instructor, Johnny Bass, is fast becoming one of my favorite teachers of CCIE material. His no-BS straight to the point style is great for covering CCIE material. Like yesterday’s IPv6 session, I jotted some notes and wanted to share them here.

Key points about LMI
Three types of LMI –
Gang of four, then ANSI (T1.617 Annex D, and then ITU (Q.933 Annex A)
LMI type needs to match Frame relay switch

Virtual Circuits
Switched Virtual Circuits (SVC) – temporary, like a phone call. Setup then torn down
Permanent Virtual Circuits (PVC) – nailed up, appears like a permananent connection

Layer 3 to layer 2 mapping

ZBF and DNS?

Thu, 2012-06-14 11:53

My 887 router will be a DNS server, I have ZBF. I have to open the port to allow traffic from the DNS server.

<code>
Jun 14 18:23:50.438: %FW-6-DROP_PKT: Dropping udp session 208.67.220.220:53 172.16.1.23:51872 on zone-pair OUTSIDE-TO-SELF class class-default und in policy-map with ip ident 0
</code>

I created an ACL and included it in a class map with 'pass'. It did not work. It worked when I opened ALL udp from this IP?

<code>
Extended IP access list DNS
    10 permit udp host 208.67.220.220 any eq domain
    20 permit udp host 8.8.8.8 any eq domain
    30 permit udp host 208.67.220.220 any (7 matches)
</code>

<strong>Why is line 10 not working?</strong>

rebuild home lab or rent rack at ine

Fri, 2012-06-15 10:19