added ippool.h and ippool.c
diff --git a/examples/sgsnemu.conf b/examples/sgsnemu.conf
index 343f106..f2c97d7 100644
--- a/examples/sgsnemu.conf
+++ b/examples/sgsnemu.conf
@@ -27,13 +27,13 @@
# TAG: statedir
# Directory to use for nonvolatile storage.
# The program must have write access to this directory.
-#pidfile ./sgsnemu.pid
+#statedir ./
# TAG: dns
# DNS server to use for ns lookups.
# If this tag is not set the system default DNS will be used.
-#pidfile ./sgsnemu.pid
+#dns 10.1.2.3
# TAG: listen
# Specifies the local IP address to listen to
@@ -46,17 +46,10 @@
remote 10.0.0.240
# TAG: contexts
-# Use of this tag is EXPERIMENTAL
# Number of contexts to establish from the emulator to the ggsn.
# Set this tag to zero to not establish any contexts.
#contexts 1
-# TAG: static
-# Use of this tag is EXPERIMENTAL
-# Use this flag if you do not want to set dynamic tun interfaces.
-# If this flag is set a single network interface is established.
-#static
-
# TAG: timelimit
# Disconnect contexts after timelimit seconds, and exit the program.
# Setting timelimit to zero will cause the program not to disconnect.
@@ -88,11 +81,17 @@
# Password used when run in client mode.
#pwd hemlig
+
# TAG: createif
# Use this flag if you want to set up a local network interface after
# a PDP context has been established.
#createif
+# TAG: defaultroute
+# Use this flag if you want to add a default route after a network interface
+# had been established.
+#defaultroute
+
# TAG: ipup
# Script executed after network interface has been brought up.
# Executed with the following parameters: <devicename> <ip address>
@@ -103,16 +102,6 @@
# Executed with the following parameters: <devicename> <ip address>
#ipdown /etc/sgsnemu/ip-down
-# TAG: net
-# IP network address of external packet data network.
-# Only used if the defaultroute flag is set.
-#net 0.0.0.0
-
-# TAG: mask
-# IP network mask of external packet data network.
-# Only used if the defaultroute flag is set.
-#mask 0.0.0.0
-
# TAG: pinghost
# Ping a remote host through a PDP context by using ICMP echo messages.
# If more than one PDP context has been established the ICMP messages will