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DHCP snooping and ip helper interaction
No, the access switch does need to do the option82 insertion (so DHCP server can receive port information). However, - by default - the Layer3 switch refuses to accept DHCPDISCOVER broadcasts with Option82 info already in it. That is why you need additional “no ip dhcp snooping information option” command on the L3
Geert
________________________________________ From: Sadiq Yakasai [sadiqtanko@gmail.com] Sent: 25 March 2008 18:21 To: Geert Nijs Cc: Haukur ^srparson; ccielab@groupstudy.com Subject: Re: DHCP snooping and ip helper interaction
Hi Geert,
But the Access switch needs not to do the Option82 insertion, right? This would still be done by the L3 distribution switch?
Just a thought anyways.
Sadiq
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