NEC MG-SIP Configuration Manual page 80

--------------------------------------------
set check_number :
Number check function
Route Config Data
Ether[1]
Route type : Static
No | Gateway Address
-----+------------------+---------------------------
1 | 100.200. 50. 1
Ether[2]
Route type : Static
No | Gateway Address
-----+------------------+---------------------------
1 | 240.240.159. 1
: disable
| Destination network/Prefix
| 100.200. 0. 0 /16
| Destination network/Prefix
| 0. 0. 0. 0