diff --git a/controllers/login.go b/controllers/login.go
index 6a04997..db68a45 100644
--- a/controllers/login.go
+++ b/controllers/login.go
@@ -33,6 +33,10 @@ func Login(localAddr net.Addr, debugOutput bool) error {
 		return e
 	}
 
+	if localAddr != nil && global.Config.Settings.Basic.UseDhcpIP {
+		ip = localAddr.(*net.TCPAddr).IP.String()
+	}
+
 	log.Debugln("认证客户端 ip: ", ip)
 
 	if online {
diff --git a/models/config.go b/models/config.go
index 39e808b..86d509e 100644
--- a/models/config.go
+++ b/models/config.go
@@ -19,6 +19,7 @@ type Basic struct {
 	SkipCertVerify bool   `json:"skip_cert_verify" yaml:"skip_cert_verify" mapstructure:"skip_cert_verify"`
 	Timeout        uint   `json:"timeout" yaml:"timeout" mapstructure:"timeout"`
 	Interfaces     string `json:"interfaces" yaml:"interfaces" mapstructure:"interfaces"`
+	UseDhcpIP      bool   `json:"use_dhcp_ip" yaml:"use_dhcp_ip" mapstructure:"use_dhcp_ip"`
 }
 
 type Log struct {