Hello my fellow spiceheads!
I'm in an issue where I can't really explain why my setup isn't working. I'm currently using a Sophos UTM 220 and I've followed the knowledge-based guide here:
http://www.sophos.com/en-us/support/knowledgebase/118999.aspx
This is setup and working. When I go over to my managed gig switch, which is a Cisco SG500-28 28-Port. I've followed the guide necessary to create a VLAN.
However, I think I'm missing on the type of VLAN that I may need to use. Currently i have a setup my gigabit switch with two ports using VLAN 100. One port is connected to the firewall that provides the VLAN DHCP services/connection. The other port is connected to a test laptop.
The port is set in "General" mode to admit all packets. Untagged in VLAN1 (which is our network default), and tagged in VLAN100. I've also enabled DHCP relay agent using the VLAN DHCP interface (10.15.10.1/24, opposed to our normal LAN, which is 10.10.254.1/16).
Basically this happens; when the "admit all" option is chosen for the general VLAN mode, I still recieve a 10.10.0.0/16 IP address. But when I put in "tagged only" mode for those two ports, windows will complain about not being able to reach the DHCP server.
Just a quick layout:
VLAN1: 10.10.0.0/16
VLAN100: 10.15.10.0/24
I've already tried my google-fu, and it is not strong with me as of recently. I'm hoping my more seasoned networking guys can give me a hand.
Thanks in advanced!