IP CEF required for NBAR what logic?

From: dave dave (funccie@gmail.com)
Date: Fri Feb 20 2009 - 03:57:54 ARST

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Hi Expert,

Why do we need to enable "ip cef" when using the "NBAR protocol", no
explanation found on this. I have enable "ip cef" then configure "NBAR" then
i removed "no ip cef" & "NBAR" was working fine :((( not understand the
logic behind this.

r1(config-if)#ip nbar protocol-discovery
CEF or distributed CEF switching is required for NBAR 'protocol discovery'
command

Regards
Dave

Blogs and organic groups at http://www.ccie.net

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Maybe reply: Scott M Vermillion: "RE: IP CEF required for NBAR what logic?"
Maybe reply: Nadeem Ansari: "Re: IP CEF required for NBAR what logic?"
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