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Multicast address config lost

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Operating Systems Solaris Multicast address config lost
# 1  
Old 11-15-2009
Multicast address config lost
On Solaris OS, We use the following command to config the multicast address for NIC in order to process the multicast packets:
# route add 228.228.228.228 10.101.10.2
Where " 228.228.228.228 " is the multicast for specified NIC ip 10.101.10.2 .
Also use the netstat -nr, the above set could been displayed as the following:
Code:
Routing Table: IPv4
  Destination           Gateway           Flags  Ref     Use     Interface 
-------------------- -------------------- ----- ----- ---------- --------- 
228.228.228.228             10.101.10.2          U         1       1020 e1000g0

In our program, we use the function:
setsockopt(sockfd,IPPROTO_IP,IP_ADD_MEMBERSHIP,&mreq,sizeof(mreq)) to
join the multicast group and receive the packets.
At the begining, all runs ok. But after about two days later, the multicast address 228.228.228.228 was lost, which cause our program run unnormmally.
What confuse us is that the above phenomena do not exist on the other UNIX/Linux OS. anyone can fix it,thanks.
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LEARN ABOUT REDHAT

zebra

ZEBRA(8)							   Version 0.88 							  ZEBRA(8)

NAME

       zebra - a routing manager for use with associated components

SYNOPSIS

       zebra [ -bdhklrv ] [ -f config-file ] [ -i pid-file ] [ -P port-number ]

DESCRIPTION

       zebra is a routing manager that implements the zebra route engine.  zebra supports RIPv1, RIPv2, RIPng, OSPF, OSPF6, BGP4+, and BGP4-.

OPTIONS

       -b, --batch
	      Runs in batch mode, zebra parses its config and exits.

       -d, --daemon
	      Runs in daemon mode, forking and exiting from tty.

       -f, --config-file config-file
	      Specifies the config file to use for startup. If not specified this option will likely default to /usr/local/etc/zebra.conf.

       -h, --help
	      A brief message.

       -i, --pid_file pid-file
	      When  zebra  starts  its	process idenifier is written to pid-file.  The init system uses the recorded PID to stop or restart zebra.
	      The likely default is /var/run/zebra.pid.

       -k, --keep_kernel
	      On startup, don't delete self inserted routes.

       -l, --log_mode
	      Turn verbose logging on.

       -P, --vty_port port-number
	      Specify the port that the zebra VTY will listen on. This defaults to 2602, as specified in /etc/services.

       -r, --retain
	      When the program terminates, retain routes added by zebra.

       -v, --version
	      Print the version and exit.

COMMANDS

	table [TABLENO]  -- for use with multi-table kernels

	ip route [NETWORK] [GATEWAY]
	ipv6 route [NETWORK] [GATEWAY]

	show ip route
	show ipv6 route
	show interface
	show ipforward
	show ipv6forward

	interface [IFNAME]
	       shutdown
	       no shutdown
	       ip address [IP-ADDRESS]
	       description [DESCRIPTION]
	       multicast
	       no multicast

FILES

       /usr/local/sbin/zebra
	      The default location of the zebra binary.

       /usr/local/etc/zebra.conf
	      The default location of the zebra config file.

       $(PWD)/zebra.log
	      If the zebra process is config'd to output logs to a file, then you will find this file in the directory where you started zebra.

WARNING

       This man page is intended as a quick reference for command line options, and for config file commands. The definitive document is the  Info
       file zebra.

DIAGNOSTICS

       The zebra process may log to standard output, to a VTY, to a log file, or through syslog to the system logs.  zebra supports many debugging
       options, see the Info file, or the source for details.

SEE ALSO

       References to other related man pages:

       ripngd(8), ospfd(8), ospf6d(8), bgpd(8), zebra(8), vtysh(1)

BUGS

       zebra eats bugs for breakfast. If you have food for the maintainers try <bug-zebra@gnu.org>

AUTHOR
[S]
       See <www.zebra.org>, or the Info file for an accurate list of authors.

Zebra								     July 2000								  ZEBRA(8)