nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

some command question

hc2ab

can someone elaborate what this 2 command do?
ip classless
no ip directed-broadcast

Find more posts tagged with

SAVE $250 on Your CISCO Boot Camp — Use Code "EXAM26"

Exclusively for TechExams members for Infosec Boot Camps starting before April 30, 2026

View CISCO Boot Camps

Comments

Ten9t6

hc2ab,

Both are on by default in IOS 12.0 and higher. IP classless, is on to allow you to further subnet an IP address range. Not all routing protocols support it, so it may need to be turned off, depending on your network.

no Directed-broadcast....stops a device or from pinging a broadcast address of a network. If this is not stopped, all devices in the network would respond to the ping. Do a google search on smurf attack.

Let me know if you have anymore questions...

Kenny

Webmaster

Ten9t6 wrote:

Do a google search on smurf attack.

or, check out my DoS attacks TechNotes:

www.techexams.net/technotes/securityplus/attacks-DDOS.shtml#smurf

Ten9t6

yeah...that is what I meant.

Kenny