Useful Header Drawings

Found this useful header drawings, thanks to Hexis for the work.

IP Header 8.5″x11″ PDF
IP Header 11″x17″ PDF
IP Header 800×1050 PNG

IPv6 Header 8.5″x11″ PDF
IPv6 Header 800×1050 PNG

TCP Header 8.5″x11″ PDF
TCP Header 11″x17″ PDF
TCP Header 800×1050 PNG

UDP and ICMP Headers 8.5″x11″ PDF
UDP and ICMP Headers 800×1050 PNG

Reference: http://www.visi.com/~mjb/Drawings/

Common Mistake with Access Lists

Another interesting site to help us on our access list usage. As the author says it, “A simple explanation to proper access list usage with non standard byte boundary masks (something other than 255). Lots of people screw this up”.

Read more here.

Reference: http://www.kazmier.com/computer/cisco-list.html

Some CCNP Review Materials

Found this helpful blogs. This will surely help on my ONT review. Hope this help others too…

BGP Summary Notes
BSCI Review Notes
Catalyst QOS Notes
MPLS Summary Notes
Multicast Summary Notes
Quality of Service Notes

Reference: http://vcappuccio.wordpress.com/