Networking With Raspberry Pi 2: Difference between revisions
From Iwan
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</console> | </console> | ||
=== Test | === Test 2 === | ||
Start the iperf server service on rpi2-1. | Start the iperf server service on rpi2-1. | ||
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</console> | </console> | ||
== Tshark | == Tshark and Wireshark== | ||
=== Cisco Switch Config === | === Cisco Switch Config === | ||
Latest revision as of 17:13, 16 March 2024
I created a shoppinglist and order the Raspberry Pi components (below)
- 2 x RASPBERRY PI 2 MODEL B.
- Riitek Rii mini i8 keyboard (RF based)
- Plug-n-play with the Ubuntu MATE OS for RPI2
- Ubuntu MATE OS for RPI2
- SOS Behuizing Regenboog
- ADJ 100-00006 USB Bluetooth 4.0 adapter
- Plug-n-play with the Ubuntu MATE OS for RPI2
- 2A Micro-USB power cable
- Delivers 5.2V with a maximum usage of 2A
RPI Hosts
rpi2-1 = B8:27:EB:CD:CF:E4
rpi2-2 = B8:27:EB:7E:C7:AC
The Mac address information is correct according IEEE ouisearch
Software
- Ubuntu MATE for the Raspberry Pi 2
- open-ssh server
- iperf
- tshark / wireshark
Install Ubuntu for the Raspberry Pi 2
- Build the RPI2 into the SOS Behuizing Regenboog
- The case is build out of small plates that are numbered, the numbers indicate the order of the plates where the RPI2 falls in.
- The most top and most bottom plates are blank
- Formatted the SD card with SD Formatter
- Created OS image for RPI2
- Ubuntu MATE
- Downloaded Win32 Disk Imager
- Downloaded Ubuntu MATE
- Wrote the image to the microSD card
- Ubuntu 14.04 LTS
- Downloaded + created image Ubuntu 14.04 LTS
- Ubuntu MATE
- Booted up the RPI2 and did the pre-install steps needed for:
Enable SSH
iwan@rpi2-1:~$ sudo apt-get install openssh-server
iwan@rpi2-2:~$ sudo apt-get install openssh-server
Now I am able to log in with SSH.
Install Iperf
iwan@rpi2-1:~$ sudo apt-get install iperf
iwan@rpi2-2:~$ sudo apt-get install iperf
Install Tshark and Wireshark
iwan@rpi2-1:~$ sudo apt-get install tshark wireshark
iwan@rpi2-2:~$ sudo apt-get install tshark wireshark
Iperf
Check IP addresses
iwan@rpi2-1:~$ ifconfig eth0 Link encap:Ethernet HWaddr b8:27:eb:cd:cf:e4 inet addr:10.11.11.175 Bcast:10.11.11.255 Mask:255.255.255.0 inet6 addr: fe80::ba27:ebff:fecd:cfe4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3794 errors:0 dropped:0 overruns:0 frame:0 TX packets:696 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1343222 (1.3 MB) TX bytes:86769 (86.7 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:362 errors:0 dropped:0 overruns:0 frame:0 TX packets:362 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:34861 (34.8 KB) TX bytes:34861 (34.8 KB) iwan@rpi2-1:~$
iwan@rpi2-2:~$ ifconfig eth0 Link encap:Ethernet HWaddr b8:27:eb:7e:c7:ac inet addr:10.11.11.171 Bcast:10.11.11.255 Mask:255.255.255.0 inet6 addr: fe80::ba27:ebff:fe7e:c7ac/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:8185 errors:0 dropped:0 overruns:0 frame:0 TX packets:2738 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:5417894 (5.4 MB) TX bytes:450477 (450.4 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:633 errors:0 dropped:0 overruns:0 frame:0 TX packets:633 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:72151 (72.1 KB) TX bytes:72151 (72.1 KB) iwan@rpi2-2:~$
| Hostname | Role | IP Address |
|---|---|---|
| rpi2-1 | SERVER | 10.11.11.175 |
| rpi2-2 | CLIENT | 10.11.11.171 |
Test 1
Start the iperf server service on rpi2-1.
iwan@rpi2-1:~$ iperf -s ---- root ##b##Server listening##!b## on TCP port 5001 TCP window size: 85.3 KByte (default) ----
Start the iperf client service on rpi2-2.
iwan@rpi2-2:~$ iperf -c 10.11.11.175 ---- root ##b##Client connecting to 10.11.11.175, TCP port 5001 TCP window size: 43.8 KByte (default) ---- [ 3] local 10.11.11.171 port 53385 connected with 10.11.11.175 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-10.0 sec 113 MBytes 94.4 Mbits/sec iwan@rpi2-2:~$
View results on the server.
iwan@rpi2-1:~$ iperf -s ---- Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ---- [ 4] local 10.11.11.175 port 5001 connected with 10.11.11.171 port 53385 [ ID] Interval Transfer Bandwidth [ 4] 0.0-10.0 sec 113 MBytes 94.1 Mbits/sec
Test 2
Start the iperf server service on rpi2-1.
iwan@rpi2-1:~$ iperf -s ---- root ##b##Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ----
Start the iperf client service on rpi2-2.
iwan@rpi2-2:~$ iperf -c 10.11.11.175 -r ---- Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ---- ---- root ##b##Client connecting##!b## to 10.11.11.175, TCP port 5001 TCP window size: 70.0 KByte (default) ---- [ 5] local 10.11.11.171 port 53386 connected with 10.11.11.175 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.0 sec 112 MBytes 93.6 Mbits/sec [ 4] local 10.11.11.171 port 5001 connected with 10.11.11.175 port 40047 [ 4] 0.0-10.1 sec 113 MBytes 94.1 Mbits/sec iwan@rpi2-2:~$
View results on the server.
iwan@rpi2-1:~$ iperf -s ---- Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ---- [ 4] local 10.11.11.175 port 5001 connected with 10.11.11.171 port 53386 [ ID] Interval Transfer Bandwidth [ 4] 0.0-10.1 sec 112 MBytes 93.2 Mbits/sec ---- root ##b##Client connecting##!b## to 10.11.11.171, TCP port 5001 TCP window size: 70.0 KByte (default) ---- [ 4] local 10.11.11.175 port 40047 connected with 10.11.11.171 port 5001 [ 4] 0.0-10.0 sec 113 MBytes 94.4 Mbits/sec
Conclusion
At first I was wondering why I did not got more troughput then 1 Gb/sec, but then I discovered that the RPi2 only has a FastEthernet interface, and I tought it had a GigabitEthernet interface:
iwan@rpi2-1:~$ dmesg|grep eth0 [ 2.356975] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:cd:cf:e4 [ 30.472266] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup [ 32.084114] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1 iwan@rpi2-1:~$
iwan@rpi2-2:~$ dmesg|grep eth0 [ 2.340162] smsc95xx 1-1.1:1.0 eth0: register 'smsc95xx' at usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:7e:c7:ac [ 29.505781] smsc95xx 1-1.1:1.0 eth0: hardware isn't capable of remote wakeup [ 31.131441] smsc95xx 1-1.1:1.0 eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1 iwan@rpi2-2:~$
Tshark and Wireshark
Cisco Switch Config
| Device | Switchport | Role |
|---|---|---|
| Source box | Gi0/22 | SOURCE |
| Wireshark box | Gi0/23 | DESTINATION |
! interface GigabitEthernet0/22 description Source box switchport access vlan 11 switchport mode access spanning-tree portfast no shut ! default interface GigabitEthernet0/23 ! monitor session 1 source interface gigabitEthernet 0/22 both ! monitor session 1 destination interface gigabitEthernet 0/23 encapsulation replicate !
Wireshark Capture
iwan@rpi2-1:~$ sudo tshark -f "port 80" -i eth0 -w /tmp/capture-18-06-15-1542.cap [sudo] password for iwan: tshark: Lua: Error during loading: [string "/usr/share/wireshark/init.lua"]:46: dofile has been disabled due to running Wireshark as superuser. See http://wiki.wireshark.org/CaptureSetup/CapturePrivileges for help in running Wireshark as an unprivileged user. Running as user "root" and group "root". This could be dangerous. root ##b##Capturing on 'eth0' 1027 Ctrl-C
The capture was aborted with the "Ctrl-C" input.
View if the results are available:
iwan@rpi2-1:/$ cd tmp/ iwan@rpi2-1:/tmp$ ls -l total 876 -rw------- 1 root root 894976 Jun 18 15:46 capture-18-06-15-1542.cap iwan@rpi2-1:/tmp$
Usefull links