sing-box/docs/faq/fakeip.md

# FakeIP

FakeIP refers to a type of behavior in a program that simultaneously hijacks both DNS and connection requests. It
responds to DNS requests with virtual results and restores mapping when accepting connections.

#### Advantage

*

#### Limitation

* Its mechanism breaks applications that depend on returning correct remote addresses.
* Only A and AAAA (IP) requests are supported, which may break applications that rely on other requests.

#### Recommendation

* Enable `dns.independent_cache` unless you always resolve FakeIP domains remotely.
* If using tun, make sure FakeIP ranges is included in the tun's routes.
* Enable `experimental.clash_api.store_fakeip` to persist FakeIP records, or use `dns.rules.rewrite_ttl` to avoid losing records after program restart in DNS cached environments.
Add fakeip support 2023-03-25 04:03:23 +00:00			`# FakeIP`

			`FakeIP refers to a type of behavior in a program that simultaneously hijacks both DNS and connection requests. It`
			`responds to DNS requests with virtual results and restores mapping when accepting connections.`

			`#### Advantage`

Update documentation 2023-06-07 13:10:01 +00:00			`*`
Add fakeip support 2023-03-25 04:03:23 +00:00
			`#### Limitation`

			`* Its mechanism breaks applications that depend on returning correct remote addresses.`
			`* Only A and AAAA (IP) requests are supported, which may break applications that rely on other requests.`

			`#### Recommendation`

Update documentation 2023-06-07 13:10:01 +00:00			* Enable `dns.independent_cache` unless you always resolve FakeIP domains remotely.
Add fakeip support 2023-03-25 04:03:23 +00:00			`* If using tun, make sure FakeIP ranges is included in the tun's routes.`
			* Enable `experimental.clash_api.store_fakeip` to persist FakeIP records, or use `dns.rules.rewrite_ttl` to avoid losing records after program restart in DNS cached environments.