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Laptop users in VLANs

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3 replies

by john.adegoke

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We have a 2 VLAN set up with separate clas C addresses. One DHCP server on VLAN 2 with a IP helper address configured. The problem is whenever a laptop user moves from VLAN 1 to VLAN 2 we have to release/renew it's IP address. This works. But when auser moves from VLAN 2 to VLAN 1 release/renew does not work and the user can't get a valid address.
How do I solve this?

3 replies

by william jay

Sounds like VLAN1 has a route to Vlan2, but not lan2 to lan1, therefore the client can still 'see' the last dhcp server used, which is on lan2.

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