How to find out the original MAC address from a network adapter with manually modified MAC address:
root@core:~# ethtool -P eth3 Permanent address: 10:a2:bc:86:22:16
How to disable ipv6 for a specific network adapter:
root@core:~# echo 1 > /proc/sys/net/ipv6/conf/iscsi/disable_ipv6
How to manually change the network adapter MAC address:
root@core:~# ifconfig eth3 | grep HWaddr eth3 Link encap:Ethernet HWaddr c3:de:c3:65:g3:4t root@core:~# [color=green]ifconfig eth3 hw ether 10:a2:bc:86:22:16[/color] root@core:~# ifconfig eth3 | grep HWaddr eth3 Link encap:Ethernet HWaddr 10:a2:bc:86:22:16