Trunk Link Security

Unanswered Question
Jan 13th, 2009

How do u prevent a trunk link from becoming a access link on a switch ???

Regards,

Ryel

I have this problem too.
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Jon Marshall Tue, 01/13/2009 - 05:53

Ryel

Configure it as a trunk ie.

int fa0/4

switchport trunk encapsulation dot1q

switchport mode trunk

Jon

ryel.dsouza Tue, 01/13/2009 - 07:35

i have done that but will this be it only ??? will it prevent it from becoming a access lnk ???

Jon Marshall Tue, 01/13/2009 - 08:28

From Cisco doc (4500 config) -

"If you enter trunk mode, the interface goes into permanent trunking mode and negotiates to convert the link into a trunk link even if the neighboring interface does not approve the change."

Jon

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