valid_lft forever preferred_lft forever
Hi all,
I gave the folowing command ip addr show eth0 to get the o/p as 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:80:ad:83:e4:75 brd ff:ff:ff:ff:ff:ff inet 192.168.0.17/24 brd 192.168.0.255 scope global eth0 inet6 fe80::280:adff:fe83:e475/64 scope link valid_lft forever preferred_lft forever now my question is what does valid_lft forever preferred_lft forever means ??? |
Quote:
valid_lft = Valid Lifetime preferred_lft = Preferred Lifetime Read RFC 3484 "Default Address Selection for Internet Protocol version 6 (IPv6)". In the case of a tie (ie., source address not decided by destination subnet or other mechanisms), if you have multiple IPv6 addresses on an interface, linux tends to use the last address added. |
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