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NAT: cannot access official IP from internal Net

marduk667
Hi,

I have a new astaro installation:

Internal Network: 192.168.252..0
External Address (example): 20.20.20.20

I create a DNAT roule so it is possible to access the external IP from the Internet (HTTP and Jabber), this works perfect. But if i try to access the external Address from the internal network it fails.

A ping: 

dennis@dennis:~$ ping 20.20.20.20
PING 20.20.20.20 (20.20.20.20) 56(84) bytes of data.
64 bytes from 192.168.252.20: icmp_seq=1 ttl=128 time=0.340 ms
64 bytes from 192.168.252.20: icmp_seq=2 ttl=128 time=0.247 ms
64 bytes from 192.168.252.20: icmp_seq=3 ttl=128 time=0.289 ms

--- 62.68.249.236 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 1999ms
rtt min/avg/max/mdev = 0.247/0.292/0.340/0.038 ms

Any idea what could be the problem? I tried several SNAT roules but none of them worked.

Regards,
Dennis


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  • 0
    This usually doesn't work without a DMZ.

    You could try turning off the anti-spoofing features, there's a small chance it would help.

    The recommended solution is to setup your internal DNS so that your hostname resolves to the internal IP.
    This can be done in Astaro's DNS settings.

    Barry
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  • 0
    This usually doesn't work without a DMZ.

    You could try turning off the anti-spoofing features, there's a small chance it would help.

    The recommended solution is to setup your internal DNS so that your hostname resolves to the internal IP.
    This can be done in Astaro's DNS settings.

    Barry
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