From 92378c0ddeb56475b40609064cc91a798ace32ce Mon Sep 17 00:00:00 2001
From: Felix Yan <felixonmars@gmail.com>
Date: Tue, 25 Feb 2014 10:25:47 +0800
Subject: [PATCH] add ip.md

---
 linux/ip.md | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 linux/ip.md

diff --git a/linux/ip.md b/linux/ip.md
new file mode 100644
index 0000000000..3e3ae96732
--- /dev/null
+++ b/linux/ip.md
@@ -0,0 +1,23 @@
+# ip
+
+> Show / manipulate routing, devices, policy routing and tunnels
+
+- List interfaces with detailed info
+
+`ip a`
+
+- Display the routing table
+
+`ip r`
+
+- Make an interface up/down 
+
+`ip link set {{interface}} up/down`
+
+- Add/Delete an ip address to an interface
+
+`ip addr add {{ip}}/{{mask}} dev {{interface}}`
+
+- Add an default route
+
+`ip route add default via {{ip}} dev {{interface}}`