What is the largest possible source port number
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
What is the largest possible source port number? (Hint:see the hint in 4.)

Transcribed Image Text:The image displays a packet analysis of an Internet Protocol Version 4 (IPv4) datagram using a network tool, likely Wireshark. Below is the detailed transcription and explanation of the fields shown in the image:
### Internet Protocol Version 4
- **Source IP Address:** 10.0.0.2
- **Destination IP Address:** 239.255.255.250
- **Version:** 4
- **Header Length:** 20 bytes
- **Differentiated Services Field:** 0x00 (DSCP: CS0, ECN: Not-ECT)
- **Total Length:** 63 bytes
- **Identification:** 0x17f0 (6128)
- **Flags:** 0x40, Don't fragment
- **Fragment Offset:** 0
- **Time to Live (TTL):** 64
- **Protocol:** UDP (17)
- **Header Checksum:** 0x28c2 (validation disabled)
- **Header Checksum Status:** Unverified
### User Datagram Protocol (UDP)
- **Source Port:** 32907
- **Destination Port:** 15600
- **Length:** 43 bytes
- **Checksum:** 0xffe8 (unverified)
- **Checksum Status:** Unverified
- **UDP Payload Size:** 35 bytes
### Data
- The data section mentions a payload of 35 bytes, but the exact data content is not displayed.
This breakdown shows an IPv4 datagram carrying a UDP packet without any fragmentation. The total length of the datagram is 63 bytes, including the headers and the payload. The destination address is a multicast address, often used for network services like UPnP (Universal Plug and Play). The unverified checksum fields indicate that the packet's integrity validation is not performed in this capture.
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