[root@comdb2]$ route add host 10.22.44.137 -netmask 255.255.255.224 10.22.44.231 -interface
add net 10.22.44.137: gateway 10.22.44.231: entry exists

[root@comdb2]$ netstat -nr                    

Routing Table: IPv4
  Destination           Gateway           Flags  Ref   Use   Interface
-------------------- -------------------- ----- ----- ------ ---------
10.22.44.224         10.22.44.231         U         1    143  ce0
10.22.44.224         10.22.44.231         U         1      0  ce0:2
10.22.44.64          10.22.44.231         U         1      0  ce0
10.22.44.128         10.22.44.231         U         1      3  ce0
192.168.0.0          192.168.0.11         U         1      0  ce1
192.168.1.0          192.168.1.11         U         1     35  ce4
224.0.0.0            10.22.44.231         U         1      0  ce0
default              10.22.44.254         UG        1     93  
127.0.0.1            127.0.0.1            UH       69 520199  lo0