I have a SG500-28P switch and a number of layer 2 switches in my office network. Currently, we are using 10.202.0.1/23 and 10.202.1.1/23 networks. I need to configure 10.202.2.1/24 network and also communicate with the remaining network. What would be the proper core switch configuration for routing between subnets?
Thanks in advance.
- This thread will give you a number of guidelines :
Assuming the new VLAN ID is 3 and Gi1 is connected to one of your Layer two switches which requires this new VLAN, the config will look like:
! vlan 3 ! int vlan 3 ip address 10.202.2.1 255.255.255.0 ! int gi1 switchport trunk allowed vlan add 3 !
Assuming you do not have ACLs applied on the other two SVIs, you should have inter-VLAN communication with VLAN 3.
Hi, thank you for the prompt reply.
I'm a little confused about vlan creation.
Currently "show vlans" command says no vlans configured.
"show ip interface brief" shows two interfaces as up, but no vlans.
Do I need to create a new vlan for the new subnet?
The new subnet is not on a single layer 2 switch but on several switches connected to the core switch.
In which case those two existing interfaces must be routed interface.
Can you share the output of sh ip int br ?
Can you give details of the topology, ie how the switches are connected? This will help us determine is an SVI or routed interface is appropriate for your new subnet.
LVAA#sh ip int br
Interface IP-Address OK? Method Status Protocol
Embedded-Service-Engine0/0 unassigned YES NVRAM administratively down down
GigabitEthernet0/0 10.139.1.25 YES NVRAM up up
GigabitEthernet0/1 10.202.0.1 YES NVRAM up up
GigabitEthernet0/0/0 unassigned YES NVRAM administratively down down
please find the attachment.
what are the exact models you have ? The SG500X/SG500XG/ESW2-550X do IPv4 routing, I think. What is the core switch you have (e.g. 4500/6500) ?
By the way, 10.202.0.1/23 and 10.202.1.1/23 are the same, that is, part of the same, large subnet.