IPv6: use net.JoinHostPort #4597
Description
Do not use following, it will cause problem on IPv6.
gwAddr = fmt.Sprintf("%s:%s", gwIP, port)
use net.JoinHostPort
{{ message }}
Do not use following, it will cause problem on IPv6.
gwAddr = fmt.Sprintf("%s:%s", gwIP, port)
use net.JoinHostPort