diff --git a/config.ini b/config.ini
index 71b8ed74..751e88f8 100644
--- a/config.ini
+++ b/config.ini
@@ -1,6 +1,6 @@
 [dpdk]
 # Hexadecimal bitmask of cores to run on.
-lcore_mask=1
+lcore_mask=2
 
 # Number of memory channels.
 channel=4
@@ -61,13 +61,22 @@ nb_vdev=0
 # Number of bond.
 nb_bond=0
 
+# Each core write into own pcap file, which is open one time, close one time if enough.
+# Support dump the first snaplen bytes of each packet.
+# if pcap file is lager than savelen bytes, it will be closed and next file was dumped into.
+[pcap]
+enable = 0
+snaplen= 96
+savelen= 16777216
+
 # Port config section
 # Correspond to dpdk.port_list's index: port0, port1...
+
 [port0]
-addr=192.168.1.2
+addr=192.168.4.69
 netmask=255.255.225.0
-broadcast=192.168.1.255
-gateway=192.168.1.1
+broadcast=192.168.4.255
+gateway=192.168.4.1
 
 # lcore list used to handle this port
 # the format is same as port_list