To set a static ARP entry:
arp -s x.x.x.x yy:yy:yy:yy:yy:yy
To set a public static ARP entry, specifying the interface it should sit off of:
arp -i [interface] -s x.x.x.x yy:yy:yy:yy:yy:yy pub
http://xmodulo.com/how-to-add-or-remove-static-arp-entry-on-linux.html
To add a static route
route add x.x.x.x
http://www.thegeekstuff.com/2012/04/route-examples
https://support.symantec.com/en_US/article.TECH142841.html