Archive for the ‘CCNA’ Category

Top Ten IT Certs

| September 17th, 2011 | 3 Comments »
toptencerts

According 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 the recent downsizing ...

Read more...
Share

When “deny any” doesn’t deny all!

| December 27th, 2010 | 9 Comments »

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 ...

Read more...
Share

VLAN Access Lists Lab#01

| June 23rd, 2010 | 8 Comments »

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 you ...

Read more...
Share

Random Blog Images

Frame Relay LMI Autosense Lab#02

| June 21st, 2010 | 2 Comments »

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 RTR-3620(config-if)#frame-relay intf-type dce RTR-3620(config-if)#end RTR-3620#sh run int s1/1 Building configuration... Current configuration ...

Read more...
Share

Cisco LAN Switching Fundamentals

| June 3rd, 2010 | 3 Comments »
Cisco LAN Switching Fundamentals

Today my copy of "Cisco LAN Switching Fundamentals" has arrived. Written by CCIE's David Barnes #6563 and Basir Sakandar #6040. John Tiso CCIE #5162  is credited as contributing author. Now, when you're searching for routing books, you will get hundreds of results. There does seem to be a lack of switching books. Sure, you'll find those ...

Read more...
Share