Re: problems with IP Masquerade

[Cornelius Creedon <neil box1 staller sunysb edu>]

have you done an:

echo "1" > /proc/sys/net/ipv4/ip_forward

?

if the kernel has all the right support and you have the ipfwadm package
and it still doesnt work this may be the culprit.

-cc

On Fri, 26 Feb 1999 frts@matef.sch.bme.hu wrote:

> Hi all,
> 
> This time I use 2.0.35 with my alpha and I want to use IP Masquerade.
> Followed the howto, selected all the recommended kernel options and bulid
> a modular kernel. The 2 ethercards found properly by the kernel.
> The modules are O.K. I can modprobe them. 
> I do FORWARD_IPV4=true in /etc/sysconfig/network and rebooted. 
> But when I want to use ipfwadm  got an error message.
> 
> [root@simba /root]# /sbin/ipfwadm -F -p deny 
> [root@simba /root]# /sbin/ipfwadm -F -a m -S 192.168.1.0/24 -D 0.0.0.0/0
> ipfwadm: setsockopt failed: Invalid argument
>  
> [root@simba /root]# /sbin/ifconfig 
> lo        Link encap:Local Loopback  
>           inet addr:127.0.0.1  Bcast:127.255.255.255  Mask:255.0.0.0
>           UP BROADCAST LOOPBACK RUNNING  MTU:7168  Metric:1
>           RX packets:1171 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:1171 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 
> 
> eth0      Link encap:Ethernet  HWaddr 08:00:2B:27:8D:49  
>           inet addr:152.66.151.11  Bcast:152.66.151.255 Mask:255.255.252.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:12600 errors:3 dropped:0 overruns:0 frame:6
>           TX packets:1596 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:103 
>           Interrupt:15 Base address:0x200 
> 
> eth1      Link encap:Ethernet  HWaddr 00:40:95:15:BE:CC  
>           inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:16 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:16 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 
>           Interrupt:10 Base address:0x300 
> 
> Thanks for any help,
> 
> 
> Istvan
> 
> 
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