Re: (no subject)
Re: (no subject)
- Subject: Re: (no subject)
- From: Justin Walker <email@hidden>
- Date: Tue, 8 Apr 2003 21:21:44 -0700
On Tuesday, Apr 8, 2003, at 04:47 US/Pacific, Mahesh Vyas wrote:
Even if we set the TTL , How can it be forwarded to other simple
routers as
TTL is in the packet. The router gets packets, decrements the TTL, and
sends them on. I don't understand what problem you think you have or
what problem you are trying to solve.
There immediate routers should support multicasting so that increasing
the
hop count will make the data packet jump to <hop count set>* routers
I don't know what this means. What are "<hop count set>* routers"?
My aim is
When clients logs in it will send a multicast request to network
searching
for the server
Server which is waiting in accept mode should get the client request
In same subnetwork it is possible but what in another subnetwork
i.e. XX.XX.22.XX can communicate with YY.YY.22.YY but not with
YY.YY.23.YY
due to difference in subnetwork
Will the setting of hop count can send the request to later IP address.
You *must* have a multicast router around to get multicast traffic off
your local subnet. I don't know what environment you are in, but
typically, IPv4 infrastructures don't automatically route multicast
packets. Check with your network support group to see whether they are
set up for multicast routing.
You can verify what is going on with a packet sniffer (e.g., tcpdump or
ethereal). Note that the default hop count for multicast is '1', so
you will have to set the TTL with a setsockopt(). Since you are using
multicast (you didn't mention this before), you need to use the
multicast option, not IP_TTL (see <netinet/in.h>).
Regards,
Justin
--
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| | >(no subject) (From: Mahesh Vyas <email@hidden>) |