linux proxy arp

versions

net-tools package(provides arp utility): 1.60 linux kernel: 3.15.0

enabling proxy arp

permanent setting (survives reboot), all interfaces

# sysctl net.ipv4.conf.all.proxy_arp=1

checking proxy arp setting(is 1 if enable, 0 if disabled)

# cat /proc/sys/net/ipv4/conf/all/proxy_arp
1