unify sysctl.conf, add extra netfilter options (#1996)

SVN-Revision: 7784

package/base-files/files/etc/sysctl.conf

@@ -8,5 +8,6 @@ net.ipv4.tcp_fin_timeout=30
 net.ipv4.tcp_keepalive_time=120
 net.ipv4.tcp_syncookies=1
 net.ipv4.tcp_timestamps=0
-net.ipv4.ip_conntrack_tcp_timeouts="300 43200 120 60 120 120 10 60 30 120"
-net.ipv4.ip_conntrack_udp_timeouts="60 180"
+net.ipv4.netfilter.ip_conntrack_tcp_timeout_established=3600                    
+net.ipv4.netfilter.ip_conntrack_udp_timeout=60                                  
+net.ipv4.netfilter.ip_conntrack_udp_timeout_stream=180                          

target/linux/generic-2.6/base-files/etc/sysctl.conf

@@ -1,10 +0,0 @@
-kernel.panic=3
-net.ipv4.conf.default.arp_ignore=1
-net.ipv4.conf.all.arp_ignore=1
-net.ipv4.ip_forward=1
-net.ipv4.icmp_echo_ignore_broadcasts=1
-net.ipv4.icmp_ignore_bogus_error_responses=1
-net.ipv4.tcp_fin_timeout=30
-net.ipv4.tcp_keepalive_time=120
-net.ipv4.tcp_syncookies=1
-net.ipv4.tcp_timestamps=0