UDP RemoteAddr() returns always (wrong) IPv6 about gnet HOT 6 CLOSED

Hi @darinkes
I believe that Go will give priority to the IPv6 when the server supports both IPv4 and IPv6, have you ever tried "udp4"？

from gnet.

According to tcpdump its an IPv4 connection from 127.0.0.1 to 127.0.0.1.
E.g. listenAddr is "udp://127.0.0.1:5555"
Works fine with net.ListenUDP("udp", listenAddr), which also gives a correct RemoteAddr()

[::7f00:1] is the result of mangled data cause of the bug in eventloop.go

udp4 does not seem to exist:

listen udp4 127.0.0.1:5555: address 127.0.0.1:5555: unexpected address type

from gnet.

I've run a test with UDP on my linux server and printed some logs:

It seems that everything goes well, so could you make sure that the listenAddr := fmt.Sprintf("udp://%s", this.cfg.Bind) passes the right arguments to gnet？Maybe you print the whole string of it and check it out?

from gnet.

BTY, you could update to the latest code of gnet and try it again, let's see whether the issue still exists.

from gnet.

func (this *Server) OnInitComplete(srv gnet.Server) (action gnet.Action) {
        log.Debugf("Server is listening on %s (multi-cores: %t, loops: %d)", srv.Addr.String(), srv.Multicore, srv.NumLoops)
        return
}

func (this *Server) React(c gnet.Conn) (out []byte, action gnet.Action) {
        log.Debugf("%v -> %v", c.RemoteAddr(), c.LocalAddr())
}

Results in

2019-11-11 15:25:15 [DEBUG] (udp/server): Server is listening on 127.0.0.1:5555 (multi-cores: true, loops: 24)
2019-11-11 15:25:16 [DEBUG] (udp/server): [::7f00:1]:55170 -> 127.0.0.1:5555

I saw you fixed it in master now: ec7bd36 👍
Thats nearly the same fix I also applied in my local gnet checkout and it works.

from gnet.

checked out master and now it shows

2019-11-11 15:44:00 [DEBUG] (udp/server): 127.0.0.1:44772 -> 127.0.0.1:5555

Thanks for fixing this so quick

from gnet.