Update writeups/ipv6/rfc4191

2 files changed, 4 insertions, 4 deletions

diff --git a/writeups/ipv6/rfc4191/rfc4191.ko.md b/writeups/ipv6/rfc4191/rfc4191.ko.md
index 2558cca..09bbcaa 100644
--- a/writeups/ipv6/rfc4191/rfc4191.ko.md
+++ b/writeups/ipv6/rfc4191/rfc4191.ko.md
@@ -15,11 +15,11 @@
 RFC 4191을 지원하는 운영체제는 RA 메시지에서 RIO를 받아 라우팅 테이블에 해당
 프리픽스를 추가한다.
 
-| OS | Support | From | Note |
+| OS | Support | Since | Note |
 | - | - | - | - |
 | 윈도 | YES | ? | [Windows Server 2012 문서](https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/jj574227(v=ws.11))에 처음 언급됨 |
 | 리눅스 | MAYBE | [v2.6.17-rc1](https://github.com/torvalds/linux/blame/4236f913808cebef1b9e078726a4e5d56064f7ad/net/ipv6/ndisc.c#L258) | `CONFIG_IPV6_ROUTE_INFO` 옵션 기본적으로 꺼져있음. 대부분의 배포판이 옵션을 켜 빌드함 |
-| 안드로이드 | YES | ? | 리눅스 지원이 안드로이드가 출시되기 전부터 있었음 |
+| 안드로이드 | YES | [4.2](https://en.wikipedia.org/wiki/Comparison_of_IPv6_support_in_operating_systems) ? | 리눅스 지원은 안드로이드가 출시되기 전부터 있었음. 4.2버전부터 지원 되었을 것으로 봄 |
 | XNU(IOS, macos) | YES | [xnu-7195.50.7.100.1](https://github.com/apple-oss-distributions/xnu/blame/8d741a5de7ff4191bf97d57b9f54c2f6d4a15585/bsd/netinet6/nd6_rtr.c#L490) | https://theapplewiki.com/wiki/Kernel#Versions |
 | FreeBSD | [NO](https://github.com/freebsd/freebsd-src/blob/47ca5d103f229b090899379ce449af5e89faf627/sys/netinet6/nd6.c#L507) | - | 라우터 탐색 프로세스가 "rtsold" 유저스페이스 프로그램에 구현됨 |
 | OpenBSD | [NO](https://github.com/openbsd/src/blob/36a0e83f909d48cbb69156be916b6356c14b9ae5/sbin/slaacd/engine.c#L1555) | - | 라우터 탐색 프로세스가 "slaacd" 유저스페이스 프로그램에 구현됨 |
diff --git a/writeups/ipv6/rfc4191/rfc4191.md b/writeups/ipv6/rfc4191/rfc4191.md
index 8f4d73f..415f7b7 100644
--- a/writeups/ipv6/rfc4191/rfc4191.md
+++ b/writeups/ipv6/rfc4191/rfc4191.md
@@ -15,11 +15,11 @@ that are responsible for routing traffic. This gives us many options to explore:
 An operating system that supports RFC 4191 should accept the RIOs in RA messages
 and add the prefixes in the routing table.
 
-| OS | Support | From | Note |
+| OS | Support | Since | Note |
 | - | - | - | - |
 | Windows | YES | ? | First mention in [Windows Server 2012 doc](https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/jj574227(v=ws.11)) |
 | Linux | MAYBE | [v2.6.17-rc1](https://github.com/torvalds/linux/blame/4236f913808cebef1b9e078726a4e5d56064f7ad/net/ipv6/ndisc.c#L258) | `CONFIG_IPV6_ROUTE_INFO` disabled by default, but most distros enable it |
-| Android | YES | ? | Linux support predates Android, so it has been enabled for a long time |
+| Android | YES | [4.2](https://en.wikipedia.org/wiki/Comparison_of_IPv6_support_in_operating_systems) ? | Linux support predates Android, so it could have been supported since 4.2 |
 | XNU(IOS, macos) | YES | [xnu-7195.50.7.100.1](https://github.com/apple-oss-distributions/xnu/blame/8d741a5de7ff4191bf97d57b9f54c2f6d4a15585/bsd/netinet6/nd6_rtr.c#L490) | https://theapplewiki.com/wiki/Kernel#Versions |
 | FreeBSD | [NO](https://github.com/freebsd/freebsd-src/blob/47ca5d103f229b090899379ce449af5e89faf627/sys/netinet6/nd6.c#L507) | - | Router discovery implemented in userspace "rtsold" |
 | OpenBSD | [NO](https://github.com/openbsd/src/blob/36a0e83f909d48cbb69156be916b6356c14b9ae5/sbin/slaacd/engine.c#L1555) | - | Router discovery implemented in userspace "slaacd" |