The ifconfig command displays flags in both text and digital format. Although I can find a link here or there for numerical flags, I can not find any directions on how to interpret (mask) the number.
qfe2: flags=1100843<UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4> mtu
1500 index 4
usesrc vni0
inet 1.2.3.4 netmask ffffff00 broadcast 1.2.3.255
ether 0:3:ba:17:4b:e1
vni0: flags=20011100c1<UP,RUNNING,NOARP,NOXMIT,ROUTER,IPv4,VIRTUAL>
mtu 0 index 5
srcof qfe2
inet 3.4.5.6 netmask ffffffff
In the above output, note the following:
flags=1100843<UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4>
The numeric value " 1100843" maps to the flags " UP,BROADCAST,RUNNING,MULTICAST,ROUTER,IPv4".
Is there a link somewhere that I just don’t see that describes how to mask each flag ( UP,BROADCAST,etc.) from the encoded value " flags=NNNNNNNN"?
EDIT : Refine which flag interests me.