Re: [Cialug] ipchains followup ?

["Terry & Cheryl Haimann" <haimann@xxxxxxxxxxx>]

On Thu, 12 Sep 2002 20:09:47 -0000, dave@xxxxxxxxxxxxx wrote:

>Terry & Cheryl Haimann <haimann@xxxxxxxxxxx> said:
>
>> I tried duplicating my 6.0 /etc/sysconfig/network file exactly and
>it failed.
>> 
>
>So... when you bring up the ppp0 connection on the new RH 7.3 :
>
>- what is the output of route -n?

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
209.234.64.221  0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         209.234.64.221  0.0.0.0         UG    0      0        0 ppp0 

>
>- From the RH 7.3 box, can you get out to the internet?

Yes
>
>- From the RH 7.3 box, can you still see the internal network?

Yes
>
>If all of this is OK, then the problem is somewhere in the ip
>forwading and / or iptables.
>
>-dc
>

[root@xxxxxx root]# cat /etc/sysconfig/network
NETWORKING=yes
FORWARD_IPV4=no
HOSTNAME=oldboy.oldboy.com
DOMAINNAME=oldboy.com
GATEWAY=209.234.64.192
GATEWAYDEV=eth0       


I ran the following script after cycling iptables(ie:)
	/etc/init.d/iptables stop
	sh fwtest2

# flush all rules & nat tables

iptables --flush
iptables --table nat --flush

# elete all chains that are not in the default filter and nat tables

iptables --delete-chain

iptables --table nat --delete-chain

#set up ip fowarding and masqurading

iptables --table nat --append POSTROUTING --out-interface ppp0 -j MASQUERADE
iptables --append FORWARD --in-interface eth0 -j ACCEPT
echo 1 > /proc/sys/net/ipv4/ip_forward     

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