06-20-2016 09:27 PM
We configured dual mode for some ports in SX 1600 for IP-phones and user-PC. The configuration is shown below.
But now ww are facing that these two vlans getting ip in same vlan.
Please help to solve the issue.
interface ethernet 11/21
no snmp-server enable traps link-change
Thanks in Advance,
06-21-2016 09:37 AM - edited 06-21-2016 09:38 AM
Before you put the ports in dual-mode, make sure you tag them for both vlan 18 & 130.
Once you're sure that's done, make sure you have a router-interface ve 18 and 130 configured on the core (or upstream L3 device) and for that ve (or interface vlan, if Cisco) make sure you have a helper ip address configured pointing to your DHCP server.
On the DHCP server, make sure you have scopes and scope options configured properly for each subnet using DHCP.