[ENet-discuss] ENet-discuss Digest, Vol 75, Issue 5

Fri Aug 14 16:29:12 PDT 2009

Thanks for the replies. I do seem to have had some success with setting the
server with:

address.host = ENET_HOST_ANY;

And then the client as     address.host = ENET_HOST_BROADCAST;

Once connected it seems to work fine, but it does seem flaky to connect
sometimes. I've also found that decreasing the timeout time for the client
seems to have improved matter eg enet_host_service(sClient, &event, 100)
(from like 5000).

Im happy with this, but Im not sure why it works, and I want to be sure that
it will work on others routers/LANS etc (I've manged to test it on one
router so far and it also worked there)

Any hints on how/why it works and if its reliable would be great! thanks
again.

2009/8/14 <enet-discuss-request at cubik.org>

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> Today's Topics:
>
>   1.  Finding LAN server IP address (Jonathan Hodgkinson)
>   2. Re:  Finding LAN server IP address (William Brandt)
>   3. Re:  Finding LAN server IP address (Emmanuel Astier)
>   4. Re:  Finding LAN server IP address (Peter Soxberger)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 13 Aug 2009 22:52:45 +0100
> From: Jonathan Hodgkinson <jonathan.hodgkinson at gmail.com>
> To: ENet-discuss at cubik.org
> Subject: [ENet-discuss] Finding LAN server IP address
> Message-ID:
>        <30bbff720908131452o516f0e80n99ca0508628ea50c at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Sorry if this is a basic question: I'm trying to setup a local game over
> wifi. So one client will create the 'server' and the other clients will try
> and join as clients. The problem is on a local LAN it seems they have to
> connect to the locally assigned IP of that server but I dont know how to
> get
> this through the code.
>
> I can get the client to connect to the server by manually finding the IP
> say
> 192.168.4 but I need to get this through the code.
>
> Does this mean I have to get the server to  do some kind of broadcasting?
>
> Thanks in advance!
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> ------------------------------
>
> Message: 2
> Date: Fri, 14 Aug 2009 03:14:32 -0500
> From: William Brandt <taekvideo at gmail.com>
> To: Discussion of the ENet library <enet-discuss at cubik.org>
> Subject: Re: [ENet-discuss] Finding LAN server IP address
> Message-ID: <4A851CE8.90105 at gmail.com>
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> ------------------------------
>
> Message: 3
> Date: Fri, 14 Aug 2009 10:58:33 +0200
> From: "Emmanuel Astier" <eastier at ubisoft.fr>
> To: "Discussion of the ENet library" <enet-discuss at cubik.org>
> Subject: Re: [ENet-discuss] Finding LAN server IP address
> Message-ID:
>        <3E98B8370BEFCE4AA3C447B64060A5140518D0FB at PDC-MAIL1.ubisoft.org>
> Content-Type: text/plain; charset="iso-8859-1"
>
> For a LAN session, the client broadcast a message ? is there any server out
> there ?, on a specific port.
>
> The server listens to this port, get the message and send a response ( as a
> broadcast usually so every client can see any changes in the server ) "Am I
> a server here, with my IP : XXX" ( and perhaps some other useful
> informations ).
>
> Now the client has received the response, so he can do whatever he wants...
>
>
>
> Hope it helps,
>
>
>
> Emmanuel
>
>
>
> De : enet-discuss-bounces at cubik.org [mailto:enet-discuss-bounces at cubik.org]
> De la part de William Brandt
> Envoy? : vendredi 14 ao?t 2009 10:15
> ? : Discussion of the ENet library
> Objet : Re: [ENet-discuss] Finding LAN server IP address
>
>
>
> Jonathan Hodgkinson wrote:
>
> Sorry if this is a basic question: I'm trying to setup a local game over
> wifi. So one client will create the 'server' and the other clients will try
> and join as clients. The problem is on a local LAN it seems they have to
> connect to the locally assigned IP of that server but I dont know how to get
> this through the code.
>
> I can get the client to connect to the server by manually finding the IP
> say 192.168.4 but I need to get this through the code.
>
> Does this mean I have to get the server to  do some kind of broadcasting?
>
> Thanks in advance!
>
>
>
>
>
>
> ________________________________
>
>
>
>
> _______________________________________________
> ENet-discuss mailing list
> ENet-discuss at cubik.org
> http://lists.cubik.org/mailman/listinfo/enet-discuss
>
>
> The client-side needs to know either the ip address (whether local or
> external) of the server, or a hostname which resolves to the right ip
> address.
> You can use a free dns service, such as dyndns, to resolve to an ip address
> which you can change at any time without modifying the code.  This would
> require you to have external internet access though, and wouldn't work on a
> local lan which isn't connected to the internet.  Other than that, the only
> way to do it would be to have the user supply the ip address to connect to.
>  All of the games I've played which support tcp/ip play use this method if
> they don't have a centralized server with a static ip that organizes all
> other servers.
>
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> ------------------------------
>
> Message: 4
> Date: Fri, 14 Aug 2009 13:35:21 +0200
> From: "Peter Soxberger" <Peter.Soxberger at gmx.net>
> To: Discussion of the ENet library <enet-discuss at cubik.org>
> Subject: Re: [ENet-discuss] Finding LAN server IP address
> Message-ID: <20090814113521.29360 at gmx.net>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Yes this can be done easily with udp. Send a message to the ip
> 255.255.255.255 => the message will be sent to all hosts in the LAN. The
> server answers and now the client has the ip of the server.
>
> You could also use the IP 255.255.255.255 as serverip when you connect the
> ENet client, then it will search for the server itself and you want need
> udp.
>
> Best regards,
> Petere
>
>
> -------- Original-Nachricht --------
> > Datum: Fri, 14 Aug 2009 10:58:33 +0200
> > Von: "Emmanuel Astier" <eastier at ubisoft.fr>
> > An: "Discussion of the ENet library" <enet-discuss at cubik.org>
> > Betreff: Re: [ENet-discuss] Finding LAN server IP address
>
> > For a LAN session, the client broadcast a message ? is there any server
> > out there ?, on a specific port.
> >
> > The server listens to this port, get the message and send a response ( as
> > a broadcast usually so every client can see any changes in the server )
> "Am
> > I a server here, with my IP : XXX" ( and perhaps some other useful
> > informations ).
> >
> > Now the client has received the response, so he can do whatever he
> > wants...
> >
> >
> >
> > Hope it helps,
> >
> >
> >
> > Emmanuel
> >
> >
> >
> > De : enet-discuss-bounces at cubik.org
> > [mailto:enet-discuss-bounces at cubik.org] De la part de William Brandt
> > Envoy? : vendredi 14 ao?t 2009 10:15
> > ? : Discussion of the ENet library
> > Objet : Re: [ENet-discuss] Finding LAN server IP address
> >
> >
> >
> > Jonathan Hodgkinson wrote:
> >
> > Sorry if this is a basic question: I'm trying to setup a local game over
> > wifi. So one client will create the 'server' and the other clients will
> try
> > and join as clients. The problem is on a local LAN it seems they have to
> > connect to the locally assigned IP of that server but I dont know how to
> get
> > this through the code.
> >
> > I can get the client to connect to the server by manually finding the IP
> > say 192.168.4 but I need to get this through the code.
> >
> > Does this mean I have to get the server to  do some kind of broadcasting?
> >
> > Thanks in advance!
> >
> >
> >
> >
> >
> >
> > ________________________________
> >
> >
> >
> >
> > _______________________________________________
> > ENet-discuss mailing list
> > ENet-discuss at cubik.org
> > http://lists.cubik.org/mailman/listinfo/enet-discuss
> >
> >
> > The client-side needs to know either the ip address (whether local or
> > external) of the server, or a hostname which resolves to the right ip
> address.
> > You can use a free dns service, such as dyndns, to resolve to an ip
> > address which you can change at any time without modifying the code.
>  This would
> > require you to have external internet access though, and wouldn't work on
> a
> > local lan which isn't connected to the internet.  Other than that, the
> > only way to do it would be to have the user supply the ip address to
> connect
> > to.  All of the games I've played which support tcp/ip play use this
> method
> > if they don't have a centralized server with a static ip that organizes
> all
> > other servers.
> >
>
> --
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> Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01
>
>
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> End of ENet-discuss Digest, Vol 75, Issue 5
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