dhcp relay agent, option 82, dhcp snooping anf ip source guard scenarios

Unanswered Question
Feb 1st, 2009

<p>HI every body!<br />

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<span class="content">"The DHCP snooping binding database has the MAC address, the IP address, the lease time, the binding type, the VLAN number, and the interface information that corresponds to the local untrusted interfaces of a switch."</span></p>

<p><span class="content">1 )My question is dhcp snooping database has "interface ' feild  only if dhcp option 82 is in use. Because this table is build from the dhcp server replies the agent  has received</span>. Correct or wrong?</p>

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Thanks a  lot!</p>

I have this problem too.
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sarahr202 Sun, 02/01/2009 - 17:22

Dhcp snooping database is build from the info in dhcp ack. if option 82 is being used , then port id will also be found there besides remote id.  If snooping database has port feild  for entries, it implies  option 82 is in use by relay agent.

Thanks a lot!


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