Forum Discussion
Help with routing
I just bought a GSM7328Sv2 as a pilot. The plan is to replace our 3Com 7757 modular cores with stacks of GSM's at all our locations. The 3Com cores are the default gateways for the sites. I'm too d...
I don't think you have to enable routing on each port, just keep in mind that instead of a management cpu ip address, you may want to assign the same IP address to a layer 3 routing vlan interface. My understanding is that each static route entered will require a l3 routing interface on the same subnet as the next hop. This would entail something like this from a factory state:
network protocol none
vlan database
vlan xxx
vlan routing xxx
exit
show ip vlan
config
ip routing
interface (whatever interface was created by the vlan routing command and displayed at "show ip vlan")
ip address 10.10.4.30 255.255.0.0
exit
ip route 10.80.0.0 255.255.0.0 10.10.4.1
vlan participation all include xxx
vlan port pvid all xxx
exit
By doing this, you're creating a layer 3 routing interface that can also be accessed / used for management, assigning all ports to that vlan (untagged by default) and establishing a route with the next hop being in the same subnet as the routing interface.
network protocol none
vlan database
vlan xxx
vlan routing xxx
exit
show ip vlan
config
ip routing
interface (whatever interface was created by the vlan routing command and displayed at "show ip vlan")
ip address 10.10.4.30 255.255.0.0
exit
ip route 10.80.0.0 255.255.0.0 10.10.4.1
vlan participation all include xxx
vlan port pvid all xxx
exit
By doing this, you're creating a layer 3 routing interface that can also be accessed / used for management, assigning all ports to that vlan (untagged by default) and establishing a route with the next hop being in the same subnet as the routing interface.