单选题Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?（）A ip sa-validateB ip split-horizonC ip access-routesD ip filter-options
题目
单选题
Which configuration command allows the ERX Edge Router to perform Unicast Reverse Path Forwarding lookups on all packets received on an IP interface?（）
A
ip sa-validate
B
ip split-horizon
C
ip access-routes
D
ip filter-options