Cisco – BrandonTek http://www.brandontek.com Life is short. Play with Cisco. Tue, 30 Aug 2016 23:17:47 +0000 en-US hourly 1 https://wordpress.org/?v=4.4.13 Stacking Cisco 2960-S switches http://www.brandontek.com/cisco/stacking-cisco-2960-s-switches/ http://www.brandontek.com/cisco/stacking-cisco-2960-s-switches/#comments Sun, 24 Mar 2013 00:44:43 +0000 http://www.brandontek.com/?p=722 brandontek-cisco-2960S-master-LEDBack in January 2012, I went over the steps on stacking Cisco 3750 switches. You can view that article here. (Stacking Cisco 3750 switches) The steps to stack Cisco’s 2960-S switches are generally the same so I won’t go into too much detail, but I wanted to shed some light on it just to provide […]]]> http://www.brandontek.com/cisco/stacking-cisco-2960-s-switches/feed/ 22 Stacking Cisco 3750 switches http://www.brandontek.com/cisco/stacking-cisco-3750-switches/ http://www.brandontek.com/cisco/stacking-cisco-3750-switches/#comments Sun, 15 Jan 2012 18:47:27 +0000 http://www.brandontek.com/?p=578 csico-3750x-frontThere are a lot of articles out there on the web for Cisco’s 3750 switches. However, there is no promise that those blogs will continue to stay up, so I’ve decided to create my own blog with my own experiences with Cisco’s 3750-E’s and 3750-X switches with many tips along the way! I decided to […]]]> http://www.brandontek.com/cisco/stacking-cisco-3750-switches/feed/ 27 Top Ten IT Certs http://www.brandontek.com/cisco/top-ten-it-certs/ http://www.brandontek.com/cisco/top-ten-it-certs/#comments Sat, 17 Sep 2011 16:56:47 +0000 http://www.brandontek.com/?p=604 toptencertsAccording to TechRepublic.com, SonicWALL’s CSSA edges out Cisco’s CCNA coming in at 5 and 6 respectively. I covered the CSSA course earlier this year that you can read here: SonicWALL CSSA I’ve honestly felt the last couple of years, Cisco has branched out a bit too far, this allowed other competitors into the market. With […]]]> http://www.brandontek.com/cisco/top-ten-it-certs/feed/ 3 When “deny any” doesn’t deny all! http://www.brandontek.com/cisco/when-deny-any-doesnt-deny-all/ http://www.brandontek.com/cisco/when-deny-any-doesnt-deny-all/#comments Mon, 27 Dec 2010 19:22:25 +0000 http://www.brandontek.com/?p=480 I recently came across this discussion and thought I’d shed some light. A user wants to deny all traffic outbound a specific interface. Let’s say it is ethernetO. The best way to test this is to create an ACL and apply it to your interface outbound, and ping out from an internal device. You won’t […]]]> http://www.brandontek.com/cisco/when-deny-any-doesnt-deny-all/feed/ 9 Implementing Cisco Switched Networks (SWITCH) http://www.brandontek.com/cisco/implementing-cisco-switched-networks-switch/ http://www.brandontek.com/cisco/implementing-cisco-switched-networks-switch/#comments Fri, 09 Jul 2010 13:16:10 +0000 http://www.brandontek.com/?p=441 This is a review of Implementing Cisco Switched Networks (SWITCH) Foundation Learning Guide. Written by CCIE’s Richard Froom CCIE# 5102 and Erum Frahim CCIE# 7549 and Balaji Sivasubramanian. This is an excellent book on switching fundamentals. It clearly explains VLAN’s, how and where to use them. How the old 80/20 rule is now 20/80. Security […]]]> http://www.brandontek.com/cisco/implementing-cisco-switched-networks-switch/feed/ 5 VLAN Access Lists Lab#01 http://www.brandontek.com/cisco/vlan-access-lists-lab01/ http://www.brandontek.com/cisco/vlan-access-lists-lab01/#comments Wed, 23 Jun 2010 19:28:23 +0000 http://www.brandontek.com/?p=418 You can learn all you want about ACL’s until you’re blue in the face, but what if the traffic never traverses an interface? How do you control traffic within a VLAN? That’s where VACL’s come in. VLAN access-lists can handle packets within a VLAN since there are no actual IN/OUT direction to be applied as […]]]> http://www.brandontek.com/cisco/vlan-access-lists-lab01/feed/ 8 Frame Relay LMI Autosense Lab#02 http://www.brandontek.com/cisco/frame-relay-lmi-autosense-lab02/ http://www.brandontek.com/cisco/frame-relay-lmi-autosense-lab02/#comments Mon, 21 Jun 2010 23:55:11 +0000 http://www.brandontek.com/?p=413 In this lab, we’re going to take a look at autosensing the LMI signaling protocol. As we’ve seen in Lab#01, you need this to be correct in order to bring the link up. We’ll start with the frame relay switch configuration. FRAME RELAY SWITCH RTR-3620#config t RTR-3620(config)#frame-relay switching RTR-3620(config)#int s1/1 RTR-3620(config-if)#encapsulation frame-relay RTR-3620(config-if)#clock rate 64000 […]]]> http://www.brandontek.com/cisco/frame-relay-lmi-autosense-lab02/feed/ 2 Frame Relay Switch Lab#01 http://www.brandontek.com/cisco/frame-relay-switch-lab01/ http://www.brandontek.com/cisco/frame-relay-switch-lab01/#comments Mon, 21 Jun 2010 01:26:17 +0000 http://www.brandontek.com/?p=393 In this lab, we’re going to hit two birds with one stone. We’re going to learn how to configure Cisco routers for frame relay, as well as the configuration for the actual frame relay switch. The frame relay switch will be a regular router. In this case, it’s going to be a 3620 router that […]]]> http://www.brandontek.com/cisco/frame-relay-switch-lab01/feed/ 5 Securing a Trunk http://www.brandontek.com/cisco/securing-a-trunk/ http://www.brandontek.com/cisco/securing-a-trunk/#respond Wed, 16 Jun 2010 21:20:39 +0000 http://www.brandontek.com/?p=381 Here’s another lab from Dave Hucaby. As always, please try to do them yourself before looking at the possible answers below: http://dhucaby.wordpress.com/2010/06/15/scenario-2-securing-a-trunk/ Dave’s original question: Today’s scenario involves securing a trunk between two switches… A user PC A is located on Switch A with the interface configuration shown in the diagram below. A different user […]]]> http://www.brandontek.com/cisco/securing-a-trunk/feed/ 0 VLAN Trunking 1 http://www.brandontek.com/cisco/vlan-trunking-1/ http://www.brandontek.com/cisco/vlan-trunking-1/#comments Sat, 12 Jun 2010 23:32:41 +0000 http://www.brandontek.com/?p=366 VLAN 1 Trunking by Dave HucabyIn another lab created by Dave Hucaby, we look at playing with VLAN trunking and mixing and matching native vlan’s and what the effects of doing so are. As always, you can view his original lab here: http://dhucaby.wordpress.com/2010/06/11/new-scenario-vlan-trunking-1/ Here is his original question: Here’s a new scenario to think about. I haven’t built it in […]]]> http://www.brandontek.com/cisco/vlan-trunking-1/feed/ 3