Date: Thu, 14 Oct 1999 16:18:07 +0100 (MET) From: Luigi Rizzo <luigi@labinfo.iet.unipi.it> To: singuru@wipinfo.soft.net Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: multicast set ttl value... (fwd) Message-ID: <199910141518.QAA04948@labinfo.iet.unipi.it> In-Reply-To: <9910141559.AA23897@tagore.wipinfo.soft.net> from "S.RadhaKrishna" at Oct 14, 99 03:57:23 pm
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> Hi all,
> I'm using the following call to set the ttl value (after doing a successful
> socket call)
> ------
> ttl=5;
> if (setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_TTL,
> (char *)&ttl, sizeof(ttl)) < 0)
> {
> printf("\nserv.c: setting of TTL value failed \n");
> perror("setsockopt");
> exit(1);
> }
> ---------
> It works on unix but not on NT/98. I tried declaring "ttl" as
> char/int/short. But it didn't help. I would be thankful if any one can
> provide me some help on this.
been there, done that, on windows apart from the different type (i
think it needs to be int) you can only set the ttl after you have bound
the socket to a multicast address. not totally nonsense, but definitely
"different" from unix
cheers
luigi
>
-----------------------------------+-------------------------------------
Luigi RIZZO, luigi@iet.unipi.it . Dip. di Ing. dell'Informazione
http://www.iet.unipi.it/~luigi/ . Universita` di Pisa
TEL/FAX: +39-050-568.533/522 . via Diotisalvi 2, 56126 PISA (Italy)
http://www.iet.unipi.it/~luigi/ngc99/
==== First International Workshop on Networked Group Communication ====
-----------------------------------+-------------------------------------
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