We're having trouble allowing access to our internal VOIP and VPN servers for mobile devices (or laptops tethered to said devices) because the firewall on our network is blocking 'private' source traffic per RFC 1918, which includes the 10.0.0.0/8 range that is issued to devices behind the CGNAT system.
Rather than allow the whole 16 million addresses through the firewall, is there a smaller IP block that I can allow through that allows only Telstra CGNAT devices through?
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Hey sccf, welcome to Crowd Support.
Unfortunately that is not one I know how to answer, but the rest of the community will hopefully come through with the goods.
Platinum Support might also have solution, however because this is beyond the scope of normal fault resolution or tech support, charges may apply for finding and providing it. if you'd like to explore this option you can find details here: http://tel.st/lc3pn.
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