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IPv4
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- 1IPv6 may leave phone web pages reachable from outside●On IPv4, NAT keeps a phone camera page private by accident. On IPv6 there is usually no NAT. A five-minute two-phone tes
A developer is warning that pages served from a phone on an IPv4 network are usually hidden by NAT, but IPv6 assigns globally routable addresses, so the same page can be reachable from outside. The suggestion is a quick two-phone test: try loading the page from another device off the local network to check exposure.
- 2Windows IPv4-preference registry key fails against DHCPv6 spoofing●Der Registry-Schlüssel „Prefer IPv4 over IPv6“ schützt nicht vor DHCPv6-Spoofing. Das zeigen unsere Pentests. ❌ Am beste
Security firm HISolutions reports that penetration tests show the Windows registry setting 'Prefer IPv4 over IPv6' does not protect against DHCPv6 spoofing attacks. They recommend deploying RA Guard and DHCPv6 Guard on all switches instead; where that is unavailable, disabling both DHCPv6 and router discovery directly on hosts is advised.