diff --git a/2. IPv6 Basic Technology/2. IPv6 Basic Technology.md b/2. IPv6 Basic Technology/2. IPv6 Basic Technology.md
index e176447..029c0ab 100644
--- a/2. IPv6 Basic Technology/2. IPv6 Basic Technology.md
+++ b/2. IPv6 Basic Technology/2. IPv6 Basic Technology.md
@@ -1,8 +1,8 @@
# IPv6 Basic Technology
-The main standard for IPv6 is [RFC 8200](https://www.rfc-editor.org/info/rfc8200). Many other relevant RFCs are cited in [IPv6 node requirements](https://www.rfc-editor.org/info/bcp220). Quotes from relevant RFCs are included in this chapter.
+The main standard for IPv6 is [STD86](https://www.rfc-editor.org/info/std86), currently defined by [RFC 8200](https://www.rfc-editor.org/info/rfc8200). Many other relevant RFCs are cited in [IPv6 node requirements \(BCP 220\)](https://www.rfc-editor.org/info/bcp220), although this is always slightly behind the latest RFCs. Quotes from relevant RFCs are included in this chapter.
-Some generic terms that should be used precisely are given in Section 2 of RFC 8200. In particular:
+Some generic terms that should be used precisely are given in Section 2 of STD 86. In particular:
- Node: a device that implements IPv6
diff --git a/Citex.md b/Citex.md
index 658406a..f4d8e48 100644
--- a/Citex.md
+++ b/Citex.md
@@ -1,7 +1,7 @@
# book6 Citation Index
-Generated at 2023-05-07 09:51:52 UTC+1200
+Generated at 2023-05-19 13:35:59 UTC+1200
This index was created automatically, so it's dumb. It has links to each section that mentions each citation.
@@ -359,7 +359,8 @@ This index was created automatically, so it's dumb. It has links to each section
[STD7 ●](./2.%20IPv6%20Basic%20Technology/Transport%20protocols.md)
-[STD86 ●](./2.%20IPv6%20Basic%20Technology/Extension%20headers%20and%20options.md)
+[STD86 ●](./2.%20IPv6%20Basic%20Technology/2.%20IPv6%20Basic%20Technology.md)
+[●](./2.%20IPv6%20Basic%20Technology/Extension%20headers%20and%20options.md)
[●](./99.%20Chapter%20Template/Markdown%20Usage.md)
[STD87 ●](./2.%20IPv6%20Basic%20Technology/Extension%20headers%20and%20options.md)
diff --git a/Index.md b/Index.md
index c0df16f..67726ee 100644
--- a/Index.md
+++ b/Index.md
@@ -1,7 +1,7 @@
# book6 Main Index
-Generated at 2023-05-07 09:51:52 UTC+1200
+Generated at 2023-05-19 13:35:59 UTC+1200
This index was created automatically, so it's dumb. It is not case-sensitive. It has links to each section that mentions each keyword.