| 123 | | ---- |
| 124 | | |
| 125 | | [[Image(GENIExperimenter/Tutorials/Graphics:tip.png, 40, left)]] |
| 126 | | = Tips = |
| 127 | | * If you get a "Command not found " error when executing standard commands like `ifconfig` add `sbin` to your path: |
| 128 | | {{{ |
| 129 | | export PATH=$PATH:/sbin |
| 130 | | }}} |
| 131 | | * Remember that you can use “ifconfig” to determine which Ethernet interface (e.g., eth0) is bound to what IP address at each of the nodes. |
| 132 | | * In order to enable IP forwarding of packets on a node you have to execute the following command: |
| 133 | | {{{ |
| 134 | | sudo sh -c 'echo 1 > /proc/sys/net/ipv4/ip_forward' |
| 135 | | }}} |
| 136 | | * A new slice will always be in its initial state with NO routing set up! |
| 137 | | * A useful tool to debug the packet flow is [http://www.tcpdump.org/ tcpdump]. In order to install it run: |
| 138 | | {{{ |
| 139 | | sudo apt-get install tcpdump |
| 140 | | }}} |
