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Strange problem - UTM LAN MAC visible trough WAN

Hi,
I've recently changed my ADSL line and now I'm forced to use ISP modem to negotiate ADSL connection so in my ISP modem I set Sophos WAN IP in DMZ.
Now if I go in web interface of my modem I found 2 device connected with same IP (sophos WAN) but with 2 different MAC, one of eth1 (WAN) one of eth0 (LAN)

Modem have DHCP disabled and static IP 10.30.76.1/29
Sophos UTM WAN static IP 10.30.76.2/29
Sophos UTM LAN static IP 10.30.8.1/26

My modem is an ADB DA2200

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0 PlastikUTM over 10 years ago

Ok, I've disabled MASQ rule and all work correctly with PPTP.
But I'm sure that before update to 9.309-3 withouth MASQ with same configuration only through PPTP I'm unable to reach my LAN, in fact, although I'm not an expert on network, I'm an oracle database adminstrator, to me it seemed an abnormal configuration.

Many thanks for your help!
Regards
Davide
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0 PlastikUTM over 10 years ago

Ok, I've disabled MASQ rule and all work correctly with PPTP.
But I'm sure that before update to 9.309-3 withouth MASQ with same configuration only through PPTP I'm unable to reach my LAN, in fact, although I'm not an expert on network, I'm an oracle database adminstrator, to me it seemed an abnormal configuration.

Many thanks for your help!
Regards
Davide
Cancel
Vote Up 0 Vote Down

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Strange problem - UTM LAN MAC visible trough WAN

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