[nsp] LAN-related questions

[Volodymyr Yakovenko]

Hello!

 Does anyone know about an ability to control correspondence of source IP 
 address to source MAC address on receiving interface on any Cisco router's 
 platform? 
 
 Is there any other method of implementing 'static ARP' (IP to MAC 
 correspondance) on Cisco router rather than manual creation of static arp 
 entries for _entire_ IP subnet?
 What is the right MAC for unused subnet addresses? 0000.0000.0000?
 Router's interface MAC address? 

-- 
Regards,
Volodymyr.