68 | | === 4.2 (optional) Download and compile experiment software === |
69 | | |
70 | | This step is only required if you are going to do step 5.2. |
71 | | |
72 | | a. In the first terminal, download the pingPlus software: |
73 | | {{{ |
74 | | wget http://www.gpolab.bbn.com/experiment-support/Layer2Ping/pingPlus-0.2.tar.gz |
75 | | }}} |
76 | | b. Decompress the pingPlus software: |
77 | | {{{ |
78 | | tar xvfz pingPlus-0.2.tar.gz |
79 | | }}} |
80 | | c. If you are using an ExoGENI rack, first install the compiler. |
81 | | {{{ |
82 | | sudo apt-get update |
83 | | sudo apt-get install build-essential |
84 | | }}} |
85 | | {{{ |
86 | | #!html |
87 | | <table id="Table_03" border="0" cellpadding="5" cellspacing="0"> |
88 | | <tr> |
89 | | <td> |
90 | | <img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/instageni-logo.png?format=raw" width="50" height="50" alt="InstaGENI"> |
91 | | </td> |
92 | | <td>The default image on the InstaGENI rack already includes a C compiler.</td> |
93 | | |
94 | | </tr> |
95 | | </table> |
96 | | }}} |
97 | | d. Compile the pingPlus software. |
98 | | {{{ |
99 | | cd pingPlus-0.2 |
100 | | make |
101 | | }}} |
102 | | e. Your output should look like this: |
103 | | {{{ |
104 | | client:~% wget http://www.gpolab.bbn.com/experiment-support/Layer2Ping/pingPlus-0.2.tar.gz |
105 | | --2013-07-05 09:32:26-- http://www.gpolab.bbn.com/experiment-support/Layer2Ping/pingPlus-0.2.tar.gz |
106 | | Resolving www.gpolab.bbn.com (www.gpolab.bbn.com)... 192.1.249.17 |
107 | | Connecting to www.gpolab.bbn.com (www.gpolab.bbn.com)|192.1.249.17|:80... connected. |
108 | | HTTP request sent, awaiting response... 200 OK |
109 | | Length: 4726 (4.6K) [application/x-gzip] |
110 | | Saving to: `pingPlus-0.2.tar.gz' |
111 | | |
112 | | 100%[================================================================================================================================================================>] 4,726 --.-K/s in 0.07s |
113 | | |
114 | | 2013-07-05 09:32:27 (69.1 KB/s) - `pingPlus-0.2.tar.gz' saved [4726/4726] |
115 | | |
116 | | client:~% tar xvfz pingPlus-0.2.tar.gz |
117 | | ./._pingPlus-0.2 |
118 | | pingPlus-0.2/ |
119 | | pingPlus-0.2/._Makefile |
120 | | pingPlus-0.2/Makefile |
121 | | pingPlus-0.2/._packetFunctions.c |
122 | | pingPlus-0.2/packetFunctions.c |
123 | | pingPlus-0.2/._packetFunctions.h |
124 | | pingPlus-0.2/packetFunctions.h |
125 | | pingPlus-0.2/._pingPlus.c |
126 | | pingPlus-0.2/pingPlus.c |
127 | | pingPlus-0.2/._pingPlusListener.c |
128 | | pingPlus-0.2/pingPlusListener.c |
129 | | pingPlus-0.2/._README |
130 | | pingPlus-0.2/README |
131 | | client:~% cd pin |
132 | | pingPlus-0.2/ pingPlus-0.2.tar.gz |
133 | | client:~% cd pingPlus-0.2 |
134 | | client:~/pingPlus-0.2% make |
135 | | gcc -c -o packetFunctions.o packetFunctions.c |
136 | | gcc -c -o pingPlusListener.o pingPlusListener.c |
137 | | gcc packetFunctions.o pingPlusListener.o -o pingPlusListener |
138 | | gcc -c -o pingPlus.o pingPlus.c |
139 | | gcc packetFunctions.o pingPlus.o -o pingPlus |
140 | | }}} |
141 | | f. Repeat the above in the second terminal. |
142 | | |
197 | | Doing this step requires that you did step 4.2 above. |
198 | | |
199 | | GENI provides the capability of running non-IP experiments, since you can connect your hosts at Layer 2. For the purpose of this tutorial we will use a very simple Layer 2 ping program that sends packets using a custom ethernet type. |
200 | | |
201 | | a. ExoGENI nodes run a service called "neuca" that managed network interfaces on the node. To manually adjust the IP address, we must first disable neuca on both nodes. |
202 | | {{{ |
203 | | sudo service neuca stop |
204 | | }}} |
205 | | {{{ |
206 | | #!html |
207 | | <table id="Table_03" border="0" cellpadding="5" cellspacing="0"> |
208 | | <tr> |
209 | | <td> |
210 | | <img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/exogeni-logo.png?format=raw" width="50" height="50" alt="ExoGENI"> |
211 | | </td> |
212 | | <td>The ExoGENI "neuca" service controls a variety of network configuration details.</td> |
213 | | |
214 | | </tr> |
215 | | </table> |
216 | | }}} |
217 | | b. Disable the IP on both of your nodes (being careful to disable IP on the data interface NOT the control interface). |
218 | | In each of the terminals type: |
219 | | {{{ |
220 | | sudo ifconfig <data interface name> 0.0.0.0 |
221 | | }}} |
222 | | {{{ |
223 | | #!html |
224 | | |
225 | | <table id="Table_01" border="0" cellpadding="5" cellspacing="0"> |
226 | | <tr> |
227 | | <td> |
228 | | <img src="http://groups.geni.net/geni/attachment/wiki/GENIExperimenter/Tutorials/Graphics/warning-icon-hi.png?format=raw" width="50" height="50" alt="Warning"> |
229 | | </td> |
230 | | <td> |
231 | | Be extra careful to disable the IP on the data interface, bringing down the IP on the control interface means that you will lose connectivity to your host. |
232 | | </td> |
233 | | </tr> |
234 | | </table> |
235 | | }}} |
236 | | c. Try again to ping from the client to the server. In the terminal window of the client type: |
237 | | {{{ |
238 | | ping <server data IP addr> -c 5 |
239 | | }}} |
240 | | For example: |
241 | | {{{ |
242 | | ping 10.17.1.2 -c 5 |
243 | | }}} |
244 | | This time the ping should indicate that the destination is unreachable. |
245 | | d. Start the Layer 2 ping server. In the server terminal window, type: |
246 | | {{{ |
247 | | sudo ~/pingPlus-0.2/pingPlusListener <EtherType from worksheet> |
248 | | }}} |
249 | | e. From the client try to ping the server at layer 2. You will need the mac address of the data interface of the server, the name of the data interface of the client, and the !EtherType from your worksheet. In the terminal window of the client, type: |
250 | | {{{ |
251 | | sudo ~/pingPlus-0.2/pingPlus <server mac> <client i/f name> <EtherType> |
252 | | |
253 | | where <server mac> is the server's data interface's MAC address, |
254 | | <client i/f name> is the client data interface's name, and |
255 | | <EtherType> is the EtherType from the worksheet. |
256 | | }}} |
257 | | The result should look like : |
258 | | {{{ |
259 | | $ sudo ~/pingPlus-0.2/pingPlus 02:00:9B:48:3E:20 eth3742 10001 |
260 | | RQ:'5582+2067' to 2:0:9b:48:3e:20. |
261 | | RL:5582+2067 from 2:0:3e:15:6c:ab. |
262 | | }}} |
263 | | |