修改客户端分配的ip为CIDR格式，请注意原来network格式

pkg/arpdis/addr.go

@@ -48,7 +48,7 @@ func tableLookup(ip net.IP) *Addr {
 	}
 
 	// 判断老化过期时间
-	tsub := time.Now().Sub(addr.disTime)
+	tsub := time.Since(addr.disTime)
 	switch addr.Type {
 	case TypeNormal:
 		if tsub > StaleTimeNormal {

pkg/arpdis/icmp.go

@@ -48,7 +48,7 @@ func doPing(ip string) error {
 		return err
 	}
 
-	conn.SetReadDeadline(time.Now().Add(time.Second * 2))
+	_ = conn.SetReadDeadline(time.Now().Add(time.Second * 2))
 
 	for {
 		buf := make([]byte, 512)

pkg/proxyproto/protocol.go

@@ -198,8 +198,10 @@ func (p *Conn) checkPrefixOnce() {
 func (p *Conn) checkPrefix() error {
 	if p.proxyHeaderTimeout != 0 {
 		readDeadLine := time.Now().Add(p.proxyHeaderTimeout)
-		p.conn.SetReadDeadline(readDeadLine)
-		defer p.conn.SetReadDeadline(time.Time{})
+		_ = p.conn.SetReadDeadline(readDeadLine)
+		defer func() {
+			_ = p.conn.SetReadDeadline(time.Time{})
+		}()
 	}
 
 	// Incrementally check each byte of the prefix