Date: Sun, 12 Dec 1999 12:59:01 +0900 From: "Masahiro Ariga" <mariga@cd.mbn.or.jp> To: <freebsd-questions@FreeBSD.ORG> Subject: Multicast question Message-ID: <000301bf4455$850b9160$064ca8c0@gateway>
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Dear Sir,
I am rather a novice in FreeBSD,but I am very in a troble with next
problem,so I beseech you to help me.
We developed a video transfer intra-network system and it is working.
But it transfers Unicast IP packet.
And there arises the necesity to convert to Multicast transfer.
So,I am testing to transfer multicast packets using prototype system
connecting a Server(WindowsNT)-Router(FreeBSD
version2.2.7)-Client(WindowsNT).
NT-Server and NT-Client enters a multicastgroup address 244.0.1.1 using
setsockopt.Client binds to wait for multicast packets and server sends
packets.
Although they use multicastgroup address 244.0.1.1,they individually hold
each IP address.(I tried to change IP address in Windows' TCP/IP protocol
contorol but it denied entering 244.0.1.1 so I kept them just as
previously.)
Client-192.168.79.3.
Server-192.168.79.22.(when using router I change this to 192.168.79.38)
subnet mask- 255.255.255.224
Without router and directly connecting client and server,they communicate
correctly. But if I try to connect them using router,the router does not
work correctly.
It looks like that the multicast packets destined to 244.0.1.1 arrives
ip_output routine alright, but after that do look-up routing
table(rt_tables[]) and there's no route to host holding matching destination
and they are all discarded.
Also,I have a concern.
I'd like to use FreeBSD version2.2.7 but should I version-up to 3.3 if I
use Multicast function.I am worried if there's definite difference between
them concerning Multicast function.
I honestly implore senior members to drag me out of this predicament.
Masahiro Ariga
mariga@cd.mbn.or.jp
----------------------------------------------------------------------------
- Next is my rc.conf file.
#!/bin/sh
#
# This is rc.conf - a file full of useful variables that you can set
# to change the default startup behavior of your system.
#
# All arguments must be in double or single quotes.
#
# $Id: rc.conf,v 1.1.2.45 1998/06/27 21:23:17 steve Exp $
##############################################################
### Important initial Boot-time options #####################
##############################################################
swapfile="NO" # Set to name of swapfile if aux swapfile desired.
apm_enable="NO" # Set to YES if you want APM enabled.
pccard_enable="NO" # Set to YES if you want to configure PCCARD devices.
pccard_mem="DEFAULT" # If pccard_enable=YES, this is card memory address.
pccard_ifconfig="NO" # Specialized pccard ethernet configuration (or NO).
local_startup="/usr/local/etc/rc.d /usr/X11R6/etc/rc.d" # startup script
dirs.
##############################################################
### Network configuration sub-section ######################
##############################################################
### Basic network options: ###
#SY# hostname="myname.my.domain" # Set this!
hostname="IWU-3" # Set this!
nisdomainname="NO" # Set to NIS domain if using NIS (or NO).
firewall_enable="NO" # Set to YES to enable firewall functionality
firewall_type="UNKNOWN" # Firewall type (see /etc/rc.firewall)
firewall_quiet="NO" # Set to YES to suppress rule display
tcp_extensions="YES" # Allow RFC1323 & RFC1644 extensions (or NO).
network_interfaces="fxp0 fxp1 fxp2 lo0" # List of network interfaces (lo0 is
loopback
ifconfig_fxp0="inet 192.168.79.1 netmask 255.255.255.224 media 100baseTX
mediaopt full-duplex"
# ifconfig_fxp0="inet 192.168.76.4 netmask 255.255.255.224 media 100baseTX
mediaopt full-duplex"
ifconfig_fxp1="inet 192.168.78.5 netmask 255.255.255.224 media 100baseTX
mediaopt full-duolex"
# ifconfig_fxp1="inet 192.168.76.36 netmask 255.255.255.224 media 100baseTX
mediaopt full-duplex"
ifconfig_fxp2="inet 192.168.79.37 netmask 255.255.255.224 media 100baseTX
mediaopt full-duplex"
# ifconfig_fxp2="inet 192.168.76.68 netmask 255.255.255.224 media 100baseTX
mediaopt full-duplex"
ifconfig_lo0="inet 127.0.0.1" # default loopback device configuration.
#ifconfig_lo0_alias0="inet 127.0.0.254 netmask 0xffffffff" # Sample alias
entry.
### Network daemon (miscellaneous) & NFS options: ###
syslogd_enable="YES" # Run syslog daemon (or NO).
syslogd_flags="" # Flags to syslogd (if enabled).
inetd_enable="YES" # Run the network daemon dispatcher (or NO).
inetd_flags="" # Optional flags to inetd.
named_enable="NO" # Run named, the DNS server (or NO).
named_program="/usr/sbin/named" # named program, in case we want bind8
instead.
named_flags="-b /etc/namedb/named.boot" # Flags to named (if enabled).
kerberos_server_enable="NO" # Run a kerberos master server (or NO).
kadmind_server_enable="NO" # Run kadmind (or NO) -- do not run on
# a slave kerberos server
kerberos_stash="" # Is the kerberos master key stashed?
rwhod_enable="NO" # Run the rwho daemon (or NO).
amd_enable="NO" # Run amd service with $amd_flags (or NO).
amd_flags="-a /net -c 1800 -k i386 -d my.domain -l syslog /host
/etc/amd.map"
nfs_client_enable="NO" # This host is an NFS client (or NO).
nfs_client_flags="-n 4" # Flags to nfsiod (if enabled).
nfs_server_enable="NO" # This host is an NFS server (or NO).
nfs_server_flags="-u -t 4" # Flags to nfsd (if enabled).
mountd_flags="-r" # Flags to mountd (if NFS server enabled).
nfs_reserved_port_only="NO" # Provide NFS only on secure port (or NO).
rpc_lockd_enable="NO" # Run NFS rpc.lockd (*broken!*) if nfs_server.
rpc_statd_enable="YES" # Run NFS rpc.statd if nfs_server (or NO).
portmap_enable="YES" # Run the portmapper service (or NO).
portmap_flags="" # Flags to portmap (if enabled).
rarpd_enable="NO" # Run rarpd (or NO).
rarpd_flags="" # Flags to rarpd.
xtend_enable="NO" # Run the X-10 power controller daemon.
xtend_flags="" # Flags to xtend (if enabled).
### Network Time Services options: ###
timed_enable="NO" # Run the time daemon (or NO).
timed_flags="" # Flags to timed (if enabled).
ntpdate_enable="NO" # Run the ntpdate to sync time (or NO).
ntpdate_program="ntpdate" # path to ntpdate, if you want a different one.
ntpdate_flags="" # Flags to ntpdate (if enabled).
xntpd_enable="NO" # Run xntpd Network Time Protocol (or NO).
xntpd_program="xntpd" # path to xntpd, if you want a different one.
xntpd_flags="-p /var/run/xntpd.pid" # Flags to xntpd (if enabled).
tickadj_enable="NO" # Run tickadj (or NO).
tickadj_flags="-Aq" # Flags to tickadj (if enabled).
# Network Information Services (NIS) options: ###
nis_client_enable="NO" # We're an NIS client (or NO).
nis_client_flags="" # Flags to ypbind (if enabled).
nis_ypset_enable="NO" # Run ypset at boot time (or NO).
nis_ypset_flags="" # Flags to ypset (if enabled).
nis_server_enable="NO" # We're an NIS server (or NO).
nis_server_flags="" # Flags to ypserv (if enabled).
nis_ypxfrd_enable="NO" # Run rpc.ypxfrd at boot time (or NO).
nis_ypxfrd_flags="" # Flags to rpc.ypxfrd (if enabled).
nis_yppasswdd_enable="NO" # Run rpc.yppasswdd at boot time (or NO).
nis_yppasswdd_flags="" # Flags to rpc.yppasswdd (if enabled).
### Network routing options: ###
defaultrouter="NO" # Set to default gateway (or NO).
static_routes="" # Set to static route list (or leave empty).
gateway_enable="YSE" # Set to YES if this host will be a gateway.
router_enable="YES" # Set to YES to enable a routing daemon.
router="routed" # Name of routing daemon to use if enabled.
#SY# router_flags="-q" # Flags for routing daemon.
router_flags="-s" # Flags for routing daemon.
mrouted_enable="YES" # Do multicast routing (see /etc/mrouted.conf).
# mrouted_flags="-d" # Flags for multicast routing daemon.
mrouted_flags="" # Flags for multicast routing daemon.
ipxgateway_enable="NO" # Set to YES to enable IPX routing.
ipxrouted_enable="NO" # Set to YES to run the IPX routing daemon.
ipxrouted_flags="" # Flags for IPX routing daemon.
arpproxy_all="" # replaces obsolete kernel option ARP_PROXYALL.
forward_sourceroute="NO" # do source routing (only if gateway_enable is set
to "YES")
accept_sourceroute="NO" # accept source routed packets to us
natd_enable="NO" # Enable natd if firewall_enable.
natd_interface="fxp0" # Public interface to use with natd if
natd_enable.
natd_flags="" # Additional flags for natd.
##############################################################
### System console options #################################
##############################################################
keymap="jp.106" # keymap in /usr/share/syscons/keymaps/* (or NO).
keyrate="NO" # keyboard rate to: slow, normal, fast (or NO).
keybell="NO" # bell to duration.pitch or normal or visual (or NO).
keychange="NO" # function keys default values (or NO).
cursor="NO" # cursor type {normal|blink|destructive} (or NO).
scrnmap="NO" # screen map in /usr/share/syscons/scrnmaps/* (or NO).
font8x16="NO" # font 8x16 from /usr/share/syscons/fonts/* (or NO).
font8x14="NO" # font 8x14 from /usr/share/syscons/fonts/* (or NO).
font8x8="NO" # font 8x8 from /usr/share/syscons/fonts/* (or NO).
blanktime="300" # blank time (in seconds) or "NO" to turn it off.
saver="NO" # screen saver: blank/daemon/green/snake/star/NO.
moused_enable="NO" # Run the mouse daemon.
moused_type="auto" # See man page for rc.conf(5) for available settings.
moused_port="/dev/psm0" # Set to your mouse port.
moused_flags="" # Any additional flags to moused.
##############################################################
### Miscellaneous administrative options ###################
##############################################################
cron_enable="YES" # Run the periodic job daemon.
lpd_enable="NO" # Run the line printer daemon.
lpd_flags="" # Flags to lpd (if enabled).
sendmail_enable="YES" # Run the sendmail daemon (or NO).
sendmail_flags="-bd -q30m" # -bd is pretty mandatory.
dumpdev="NO" # Device name to crashdump to (if enabled).
check_quotas="NO" # Check quotas (or NO).
accounting_enable="NO" # Turn on process accounting (or NO).
ibcs2_enable="NO" # Ibcs2 (SCO) emulation loaded at startup (or NO).
linux_enable="NO" # Linux emulation loaded at startup (or NO).
rand_irqs="NO" # Stir the entropy pool (like "5 11" or NO).
clear_tmp_enable="NO" # Clear /tmp at startup.
ldconfig_paths="/usr/lib/compat /usr/X11R6/lib /usr/local/lib" # shared
library search paths
##############################################################
### Allow local configuration override at the very end here ##
##############################################################
if [ -f /etc/rc.conf.local ]; then
. /etc/rc.conf.local
fi
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