I do hot with their mobile phone, computer connected to the hot
Ipconfig there

Wireless LAN adapter WLAN:

Connect the specific DNS suffix........ :
IPv6 addresses............ : XXXXXXXXXXXXXXXXXXXX
Temporary IPv6 address........... : XXXXXXXXXXXXXXXXXXXXXXXXX
Links to local IPv6 address........ : XXXXXXXXXXXXXXXXXXXX
IPv4 addresses............ : 192.168.43. XXX
Subnet mask............ : 255.255.255.0
The default gateway............. : fe80: : 80 AD: 16 ff: 18 fed0:7 adf %
192.168.43.1

In front of the default gateway, fe80: : 80 AD: 16 ff: fed0:7 adf % 18 what is it?

In addition, several times before I hotspots, directly shows the
The default gateway............. : fe80: : 80 AD: 16 ff: 18 fed0:7 adf %
No 192. XXXX

Need arises ipconfig/renew, could you tell me what reason be?