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Old 04-08-2010, 09:35 PM   #1
secretlydead
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iptables: No chain/target/match by that name


I'm not sure if I have a kernel problem or what here. My provider says it "should" work.

Since this doesn't give me any error:
Code:
root@a:/home/dan# echo 1 > /proc/sys/net/ipv4/ip_forward
root@a:/home/dan# iptables -P FORWARD ACCEPT
I think it should be basically configured properly.


However, I am getting these errors:
Code:
root@a:/home/dan# iptables --table nat -A POSTROUTING -o tun0 -j MASQUERADE -s 10.8.1.1/24 
iptables: No chain/target/match by that name
root@a:/home/dan# iptables --table nat -A POSTROUTING -o eth0 -j MASQUERADE -s 10.8.1.1/24
iptables: No chain/target/match by that name

and ifconfig shows me:
Code:
lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:10.8.1.1  P-t-P:10.8.1.2  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

venet0    Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:127.0.0.1  P-t-P:127.0.0.1  Bcast:0.0.0.0  Mask:255.255.255.255
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1
          RX packets:1159 errors:0 dropped:0 overruns:0 frame:0
          TX packets:882 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:537223 (524.6 KiB)  TX bytes:79788 (77.9 KiB)

venet0:0  Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:*.*.*.*  P-t-P:93.186.171.73  Bcast:0.0.0.0  Mask:255.255.255.255
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1

venet0:1  Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:*.*.*.*  P-t-P:93.186.171.16  Bcast:0.0.0.0  Mask:255.255.255.255
          UP BROADCAST POINTOPOINT RUNNING NOARP  MTU:1500  Metric:1

Does this look like my problem or the problem with my server's kernel configuration (it's a vps)?

Last edited by secretlydead; 04-08-2010 at 10:12 PM. Reason: (showed ip address)
 
Old 04-08-2010, 10:28 PM   #2
nimnull22
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Can you post here output of command:
lsmod |grep ip
 
Old 04-08-2010, 10:42 PM   #3
mweed
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Taking a guess here. The modules should automagically be taken care of, but check lsmod and see if module ipt_MASQUERADE is loaded. If not run modprobe ipt_MASQUERADE and try again.

Also is your ip address (the one being NATed to) static? If so try the SNAT target instead of MASQUERADE.
 
  


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