We are having problems with DHCP addresses "leaking" to other networks in our WAN. Each Windows domain serves up IP addresses for the LAN on which it sits.
We have three networks that VLAN through a central web filter and firewall. Frequently, we see that an IP address on Network A has been assigned to a desktop on Network B. We are using HP Procurve switches. The config is as follows- Incoming from the three networks into a switch- - Network A- VLAN 10, port 1,10 tagged Network B- VLAN 11, port 2,10 tagged Network C- VLAN 12, port 3,10 tagged Out to the web filter- port 10 untagged for all three and default VLAN <web filter sits here> In from webfilter- port 10 untagged for all three and default VLAN Network A- VLAN 10, port 1,10 tagged to firewall port Network B- VLAN 11, port 2,10 tagged to firewall port Network C- VLAN 12, port 3,10 tagged to firewall port Can anyone help us figure out why the DHCP bleeding is occurring? Thanks!
