configuration.adoc: Add a section about encryption

Change-Id: I3a2b84d386f55447e9eed35e59fdc0272e5147d1 Related: OS#1720
2019-07-29 18:12:13 +02:00 · 2019-07-29 18:12:13 +02:00 · c1ccf66e41
parent d2badb32aa
commit c1ccf66e41
1 changed files with 18 additions and 0 deletions
--- a/doc/manuals/chapters/configuration.adoc
+++ b/doc/manuals/chapters/configuration.adoc
@ -338,3 +338,21 @@ sgsn
 sgsn
 no compression v42bis
 ----
+
+=== Encryption
+
+Encryption can be enabled if the auth-policy is set to remote and the
+HLR subscriber entries contain the keys of the SIM card. See
+<<sgsn-ex-gsup>> on how to connect to an external HLR.
+
+.Example: Turn on encryption (GEA3)
+----
+sgsn
+ encryption GEA3
+----
+
+.Example: Turn off encryption (GEA0)
+----
+sgsn
+ encryption GEA0
+----