05-14-2018 10:36 PM - edited 03-05-2019 10:27 AM
we have create three vlan in our network. then we done inter vlan routing through cisco 3850 l3 switch.
we want to sent traffic all of vlan out of our network through router.
all vlan default gatway configured in cisco 3850.
configured link l3 switch to router as trunk.
configured router subinterface with respective vlan gatway network.
but it cant send traffic
it sh that sub interface is administratively down.
05-14-2018 11:05 PM
GigabitEthernet0/1.1 10.10.32.2 YES manual administratively down down
05-15-2018 02:51 AM
Hello
@Manish Manwal wrote:
we have create three vlan in our network. then we done inter vlan routing through cisco 3850 l3 switch.
we want to sent traffic all of vlan out of our network through router.
all vlan default gatway configured in cisco 3850.
configured link l3 switch to router as trunk.
configured router sub-interface with respective vlan gateway network.
but it cant send traffic
it sh that sub interface is administratively down.
It seems to have configure the rtr and the switch to perform the same routing - As you have the switch already doing this then there is no need to create sub-interfaces on the rtr
You will only need the switchport connecting to the rtr as an access port and assigned to one the vlans you have already created
On the rtrs lan interface assign it an ip address from the same vlan the its switchport is connected to.
res
Paul
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