wenwenxiong

fix mac address src for lb ip in arp response when openelb pod restart on another k8s node

3

## Description **What type of PR is this ?:** the first openelb deploy will generate arp item in switch, for example 172.31.249.200 lb ip when openelb pod restart on another...

consul v1.0 api have change, update for that by the way, i want to kown why this project stop doing TODO list? does it has any hidden defect？Thanks for reading,...