Re: Inter vlan routing with 2948G-L3 and 2950G-48-EI.
for inter vlan routing on L3 switch you need to enable ip routing
you need to define a L3 object named SVI (switched virtual interface) for each vlan that should be part of routed domain.
The L2 object vlan has to exist before
! create L2 object in vlan database
! create L3 object
int vlan 10
ip address 192.168.1.1 255.255.255.0
! very important you need to enable it:
if you don't want to route to or from the DMZ vlan it is enough to do not create the L3 object for it
For being able to use the DHCP above different vlans
all other L3 objects of vlan different from vlan where DHCP server is connected need the command
int Vlan X
ip helper-address 192.168.1.Y
that is the DHCP server ip address this is called DHCP relay function and converts unroutable DHCP broadcast requests to routable packet with IP destination = DHCP server and provides in internal field gateway the ip address of multi layer switch interface that received the original packet.
The DHCP server by examining the GW field can pick up a free IP address from the correct IP address pool
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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