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Unable to trade with nation


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My Nation: https://www.cybernations.net/nation_drill_display.asp?Nation_ID=208497

Potential Trade Partner: https://www.cybernations.net/nation_drill_display.asp?Nation_ID=543110


Error message: This trade agreement would result in a potential rule violation due to accounts on the same network and is not allowed at this time. Code #2


Despite being in the same alliance, we've never interacted before (I'm relatively new to the alliance). I've reached out to the other player, and we both live in Australia, but thousands of miles apart in different states.


Is it possible to clear this "same network" error?


Is it likely to recur? Their nation is going to be a long term trade partner, but if we're likely to be flagged again in future, then should I look elsewhere for a trade?


My ISP uses CGNAT (shared public IP addresses for many users due to limited IPv4 space). I don't know if the other player uses the same ISP (haven't confirmed that, yet!). Is CGNAT going to cause network rule violations to be flagged against anyone else on the same ISP?


https://www.aussiebroadband.com.au/blog/what-is-cgnat/ <-- My ISP



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It turns out that the other player, Oranges, does use the same ISP, Aussie Broadband.


We're about 5,000km from each other. There's no chance that we've shared a local network.


Is our ISP's CGNAT the culprit here?


What should we do going forward?



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Here's the error message screenshot taken minutes ago:




This may be the most comprehensive list of IPv4 netblocks that our ISP uses: https://www.ip2location.com/as4764 - It doesn't split up the large netblocks into multiple smaller ones for no good reason. So, the netblock list is much shorter than others, but perhaps larger in range and definitely cleaner.


Peering info for AS4764 https://www.peeringdb.com/asn/4764

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