diff options
Diffstat (limited to 'res')
| -rw-r--r-- | res/layout/faq.xml | 8 | ||||
| -rw-r--r-- | res/values/strings.xml | 2 |
2 files changed, 10 insertions, 0 deletions
diff --git a/res/layout/faq.xml b/res/layout/faq.xml index dc591318..c4fd57f0 100644 --- a/res/layout/faq.xml +++ b/res/layout/faq.xml @@ -34,6 +34,14 @@ <TextView style="@style/faqhead" + android:text="@string/battery_consumption_title" /> + + <TextView + android:id="@+id/faq_battery" + style="@style/faqitem" /> + + <TextView + style="@style/faqhead" android:text="@string/tap_mode" /> <TextView diff --git a/res/values/strings.xml b/res/values/strings.xml index 69fb9e35..a0d1a4f0 100644 --- a/res/values/strings.xml +++ b/res/values/strings.xml @@ -227,4 +227,6 @@ <string name="translation">Translation</string> <string name="openvpn_log">OpenVPN Log</string> <string name="import_config">Import OpenVPN configuration</string> + <string name="battery_consumption_title">Battery consumption</string> + <string name="baterry_consumption">In my personal tests the main reason for high battery consumption of OpenVPN are the keepalive packets. Most OpenVPN servers have a configuration directive like \'keepalive 10 60\' which translates to a keepalive packet from client to server and server to client every ten seconds. <p> While these packets are small and do not use much traffic, they keep the mobile radio network busy and increase the energy consumption. <p> This keepalive setting cannot be changed on the client. Only the system administrator of the OpenVPN can change the setting. <p> Unfortunatly using a keepalive larger than 60 seconds with udp has problems with some NAT gateways which terminate the state for a connnection after a short timeout (60s in my tests). Using TCP with long keepalive timeout works but has the TCP over TCP problem. (See <a href=\"http://sites.inka.de/bigred/devel/tcp-tcp.html\">Why TCP Over TCP Is A Bad Ide</a>)</string> </resources> |