Vsphere replication network

Hi I need some help regarding setting up a vmk for my vsphere replication 8.1.  I am currently running ESX 6.5 and trying to add a vmk for my Vsphere replication traffic which would reside on a different vlan.  How can i add multiple vlan through the vmk?  Both of my management and Vmotion is currently using one vlan, which means the gateway can only support that vlan.  If I add a new vmk for vsphere replication traffic, it won't route outside.  Any help is much appreciated.

Thanks

Andy