http://md11boing.pixnet.net/blog/post/17097949-juniper-srx%E8%A8%AD%E5%AE%9A%E5%82%99%E5%BF%98
Category Archives: Hardware
add second default route to Synology NAS
http://www.josh-burkard.ch/index.php/2012/11/add-second-default-route-to-synology-nas/
for my case:
#Login Nas
SSH or Telnet
#add a static route in /etc/rc.local
route add -net 10.201.0.0 netmask 255.255.0.0 gw 10.201.213.254
#make sure automatic add the static route when nas boot.