https://community.hpe.com/t5/switches-hubs-and-modems/new-vlan-problem/m-p/5125717#M28381 See previous Wed, 20 Aug 2008 12:34:48 GMT David Anderson78 2008-08-20T12:34:48Z https://community.hpe.com/t5/switches-hubs-and-modems/new-vlan-problem/m-p/5125715#M28379 Attached is how our current network is setup ready for the new VOIP phones. DHCP works fine for handing out 172 and 192 addresses based on the vlan being routed through.<BR /><BR />The only problem is with our email server. If we use 172.16.1.10 on the Domain controller as the default gateway the email server sends out emails fine, but DHCP will not hand out 192 ips to the pc's on VLan 200<BR />If we use 172.16.1.20 on the Domain controller as the default gateway the email server does not send out emails, but DHCP will then hand out 192 ips to the pc's on VLan 200.<BR /><BR />This is madness. All help greatly received Wed, 20 Aug 2008 11:40:59 GMT https://community.hpe.com/t5/switches-hubs-and-modems/new-vlan-problem/m-p/5125715#M28379 David Anderson78 2008-08-20T11:40:59Z https://community.hpe.com/t5/switches-hubs-and-modems/new-vlan-problem/m-p/5125716#M28380 Fixed it.<BR /><BR />Added DHCP DG as 172.16.1.10<BR />and added "route -p add 192.168.0.0 mask 255.255.0.0 172.16.1.20" via cmd on the DHCP server.<BR /><BR />Thanks to all the helped Wed, 20 Aug 2008 12:34:28 GMT https://community.hpe.com/t5/switches-hubs-and-modems/new-vlan-problem/m-p/5125716#M28380 David Anderson78 2008-08-20T12:34:28Z https://community.hpe.com/t5/switches-hubs-and-modems/new-vlan-problem/m-p/5125717#M28381 See previous Wed, 20 Aug 2008 12:34:48 GMT https://community.hpe.com/t5/switches-hubs-and-modems/new-vlan-problem/m-p/5125717#M28381 David Anderson78 2008-08-20T12:34:48Z