neaten up some code

sysctl.conf

@@ -10,9 +10,12 @@ net/ipv4/conf/all/accept_redirects=0
 net/ipv4/conf/all/accept_source_route=0
 net/ipv4/icmp_echo_ignore_broadcasts =1
 #net/ipv4/ip_forward=1
-#net.ipv4.tcp_ecn = 0
 #net.ipv4.ip_local_port_range = 32768    61000
 
+# Broken routers will corrupt the window scaling and ECN
+#net.ipv4.tcp_default_win_scale = 0
+#net.ipv4.tcp_ecn = 0
+
 #vm.vfs_cache_pressure = 100
 #vm.laptop_mode = 0
 #vm.swappiness = 60