1. 802.16 IP Telephone Lab 1 Connectivity Test

2. 802.16 IP Telephone Lab 2 Outline Ping & ICMP Fast Ping (fping) & AutoStatus One-Way Ping

3. 802.16 IP Telephone Lab 3 Ping Pinging 163.22.20.115 with 32 bytes of data: Reply from 163.22.20.115: bytes=32 time<1ms TTL=64 Ping statistics for 163.22.20.115: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms

4. 802.16 IP Telephone Lab 4 ICMP Packet Format RFC 792 – Internet Control Message Protocol

5. 802.16 IP Telephone Lab 5 Probing Packets

6. 802.16 IP Telephone Lab 6 Round-Trip Time Client Server 0.000 ms 9.952 ms 1006.122 ms 1017.039 ms request reply request reply

7. 802.16 IP Telephone Lab 7 166ms to Berkeley Pinging www.berkeley.edu [169.229.131.81] with 32 bytes of data: Reply from 169.229.131.81: bytes=32 time=166ms TTL=46 Ping statistics for 169.229.131.81: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 166ms, Maximum = 166ms, Average = 166ms

8. 802.16 IP Telephone Lab 8

9. 9 330ms to France Pinging www.it-sudparis.eu [157.159.11.8] with 32 bytes of data: Reply from 157.159.11.8: bytes=32 time=330ms TTL=39 Ping statistics for 157.159.11.8: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 330ms, Maximum = 330ms, Average = 330ms

10. 802.16 IP Telephone Lab 10

11. 802.16 IP Telephone Lab 11 Looking Glass Server Reverse traceroute http://www.six-de.net/lg/

12. 802.16 IP Telephone Lab 12 HW 1 Find a website which provides the reverse traceroute service. Mail the following information to voip- ta@ipv6.club.tw.voip- ta@ipv6.club.tw –URL of the service –Is it dual-stack or IPv4-only? –What interesting services (in addition to ping and traceroute) did you find? Due: 2009.9.29 (Tue) 13:00

13. 802.16 IP Telephone Lab 13 fping fping < FILENAME fping -g 163.22.20.0/24 –A class C subnet is scanned in 30 seconds.

14. 802.16 IP Telephone Lab 14

15. 802.16 IP Telephone Lab 15 AutoStatus

16. 802.16 IP Telephone Lab 16 AutoStatus Use “fping” to check whether servers are on-line. Use “tcp_check.c” to check that services are running. –If the FTP server is listening at TCP port 21, the attempt to establish a connection at ftp.ncnu.edu.tw:21 will succeed. ftp.ncnu.edu.tw:21 No way to check UDP services!

17. 802.16 IP Telephone Lab 17 HW 2 Query an IP phone with the OPTIONS method. Write a SIPp script or a sipcheck.c (similar to the tcpcheck.c in AutoStatus) Return -1 on failure; 0 on success. Try to integrate this tool to AutoStatus –You may need to modify AutoStatus so that its “hosts” configuration file can specify the UDP port.

18. 802.16 IP Telephone Lab 18 Tools Presentation Two independent speakers for each tool: –SIPp –Cacti –BWCTL –perfSONAR