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List: sparc-redhat
Subject: ipmasqurade config on RH 6.2
From: "Ken Plumley" <kenplumley () mediaone ! net>
Date: 2000-12-19 6:27:13
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Hi,
I am trying to configure IP Masquerade on a machine running RH 6.2 that will serve
as an internet gateway to a LAN. The gateway machine is connection to the internet
by cable modem. The gateway machine has two ethernet cards, one NIC (eth1) for
the internet connection to the cable modem and the other NIC (eth0) for the
connection to the LAN .
The current configuration allows the gateway machine to access the internet and all
machines on the LAN. All machines on the LAN can reach the gateway machine.
But no machines on the LAN can reach the internet through the gateway machine.
To configure IP Masquerade, I added the lines below to the bottom of the rc.local
file on the gateway machine:
echo "ip_masq 192.168.1.4"
echo "1">/proc/sys/net/ipv4/ip_forward
/sbin/depmod -a
/sbin/modprobe ip masq ftp.o
/sbin/modprobe ip masq raudio.o
/sbin/modprobe ip_irc.o
/sbin/ipfwadm -F -p deny
/sbin/ipfwadm -F -a m -S192.168.1.0/24 -D 0.0.0.0/0
/sbin/ifconfig eth0 192.168.1.4
/sbin/route add -net 192.168.1.0
This config used to work on RH 5.2
Did I miss something or does RH 6.2 require something else?
Any help would be much appreciated.
Thanks in advance.
Ken
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<DIV><FONT face=Arial size=2>Hi,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I am trying to configure IP Masquerade on a machine
running RH 6.2 that will serve <BR>as an internet gateway to a LAN. The gateway
machine is connection to the internet <BR>by cable modem. The gateway
machine has two ethernet cards, one NIC (eth1) for <BR>the internet connection
to the cable modem and the other NIC (eth0) for the <BR>connection to the LAN
.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>The current configuration allows the gateway
machine to access the internet and all</FONT></DIV>
<DIV><FONT face=Arial size=2>machines on the LAN. All machines on the LAN
can reach the gateway machine.</FONT></DIV>
<DIV><FONT face=Arial size=2>But no machines on the LAN can reach the internet
through the gateway machine.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>To configure IP Masquerade, I added the lines below
to the bottom of the rc.local <BR>file on the gateway machine:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2><BR>echo "ip_masq 192.168.1.4"<BR>echo
"1">/proc/sys/net/ipv4/ip_forward<BR>/sbin/depmod -a<BR>/sbin/modprobe ip
masq <A href="ftp://ftp.o">ftp.o</A><BR>/sbin/modprobe ip masq
raudio.o<BR>/sbin/modprobe ip_irc.o<BR>/sbin/ipfwadm -F -p deny<BR>/sbin/ipfwadm
-F -a m -S192.168.1.0/24 -D 0.0.0.0/0<BR>/sbin/ifconfig eth0
192.168.1.4<BR>/sbin/route add -net 192.168.1.0</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2><BR>This config used to work on RH 5.2<BR>Did I
miss something or does RH 6.2 require something else? </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Any help would be much appreciated.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Thanks in advance.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Ken</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2><BR></FONT> </DIV></BODY></HTML>
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