Syslog server not getting logs from AFM

1)No.. what i found is route to syslog goes via vlan_external from primary

but on seconday device its goes via eth0 interface

2)when i tried to change the route on secondary through GUI and sync from primary ... Secondary device route will be gone

3)Also when i run on secondary cli.. netstat -rn

i see the specific route to syslog ... how do i remove it , this route cant be seen on Gui