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Adil Börekçiler
Adil Börekçiler
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1-to-1 NAT assigning IP problem.

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0 votes
Hello,

I have installed clearOS 7.0. Updated and installed 1-to-1 NAT.
Have 2 network cards, 1 is for external and 1 is for lan.
External IP: XXX.XXX.XXX.34 Gateway: XXX.XXX.XXX.33 Subnetmask: 255.255.255.248
Didn't add any virtual interface.

I'm adding 1-to-1 NAT Rule:
Nickname: test
Interface: enp2s0 (External)
Public IP: XXX.XXX.XXX.37
Private IP: YYY.YYY.YYY.18
All protocols and Ports (checked)

After added that rule. It looks OK on web gui.
but I'm connecting via ssh and checking ifconfig. I only see 1 external ip address.

enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet XXX.XXX.XXX.34 netmask 255.255.255.248 broadcast XXX.XXX.XXX.39

there is no enp2s0:200 or something like that. 1-to-1 NAT should create it ? so I can't see the ip address that I've added via 1-to-1 NAT.

help please :(
In 1-to-1 NAT
Tuesday, June 13 2017, 01:53 PM
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  • Accepted Answer

    Duncan Colhoun
    Duncan Colhoun
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    Wednesday, June 14 2017, 08:16 AM - #Permalink
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    Doesn't 1:1 NAT point to an internal IP that already exists e.g. 1.2.3.4 (Public) points to 192.168.1.20 (Webserver running on LAN)

    So I don't think the internal IP will be created - it must exist. This is how I have always used it
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  • Accepted Answer

    Dave Loper
    Dave Loper
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    Tuesday, June 13 2017, 10:40 PM - #Permalink
    Resolved
    0 votes
    Can you see if you can ping the address.

    Also, can you try with the .35 address instead, just to check.

    If that doesn't work, does your log for the firewall demonstrate any errors?

    service firewall restart
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  • Accepted Answer

    Adil Börekçiler
    Adil Börekçiler
    Offline
    Tuesday, June 13 2017, 01:49 PM - #Permalink
    Resolved
    0 votes
    Hello,

    I have installed clearOS 7.0. Updated and installed 1-to-1 NAT.
    Have 2 network cards, 1 is for external and 1 is for lan.
    External IP: XXX.XXX.XXX.34 Gateway: XXX.XXX.XXX.33 Subnetmask: 255.255.255.248
    Didn't add any virtual interface.

    I'm adding 1-to-1 NAT Rule:
    Nickname: test
    Interface: enp2s0 (External)
    Public IP: XXX.XXX.XXX.37
    Private IP: YYY.YYY.YYY.18
    All protocols and Ports (checked)

    After added that rule. It looks OK on web gui.
    but I'm connecting via ssh and checking ifconfig. I only see 1 external ip address.

    enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
    inet XXX.XXX.XXX.34 netmask 255.255.255.248 broadcast XXX.XXX.XXX.39

    there is no enp2s0:200 or something like that. 1-to-1 NAT should create it ? so I can't see the ip address that I've added via 1-to-1 NAT.

    help please :(
    The reply is currently minimized Show
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