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Outbound cdp packet dropped, NCP not negotiated

Cisco Router 2900 tell me this:

My setup pppoe dsl 8mbps and i read on other website kinda sound of MTU.. but i dont know what is this or exact number of MTU

Please anyone can help to get out of this

Sep 13 23:19:41.076: Vi2 PPP: Outbound cdp packet dropped, NCP not negotiated

Sep 13 23:20:41.076: Vi2 PPP: Outbound cdp packet dropped, NCP not negotiated

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Sep 13 23:52:41.076: Vi2 PPP: Outbound cdp packet dropped, NCP not negotiated

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3 REPLIES 3
Frequent Contributor

Outbound cdp packet dropped, NCP not negotiated

for pppoe, decrease the MTU size, something like 1450

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Posted by WebUser Neeraj Jagga from Cisco Support Community App

Outbound cdp packet dropped, NCP not negotiated

my initial config is mtu 1492 - with the help of this forum

and now

i follow your mtu 1450

and still persist popping up the "Vi2 PPP: Outbound cdp packet dropped, NCP not negotiated"

can you give a range for mtu so i can change it easily wihout doubt..

ofc the range from your expertise and i just follow your range

Beginner

Outbound cdp packet dropped, NCP not negotiated

enter in the following

interface dialer-interface

no cdp enable

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