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Asad Ijaz

My Name is Asad Ijaz Khattak and I am the writer and blogger, known for my website "". I have writes about various topics related to technology, networking, and cybersecurity. I am also a Cisco Certified Network Professional (CCNP) and Cisco Certified Network Associate (CCNA). I have written several articles and tutorials on the website which can be used as a learning resource for people interested in networking and cybersecurity. I am the member and Editor of Proudly Team NetworkUstad


  1. What is an IP Address - Brief Introduction » Networkustad
    June 23, 2019 @ 5:48 am

    […] 6 implies that the data has a TCP segment while a value of 17 signifies a UDP segment. Apart from TCP and UDP, there are many protocols whose data can carry in an IP […]


  2. TCP and UDP » Networkustad
    August 1, 2019 @ 4:59 pm

    […] Control Protocol (TCP) tracked the packet transmission from source to destination. For example, sending a software file […]


  3. User Datagram Protocol (UDP) explaind » Networkustad
    August 7, 2019 @ 12:02 pm

    […] (UDP) is not a connection-oriented protocol so it does not offer the sophisticated retransmission, flow control and sequencing mechanism for lost and out of order packets. So User Datagram Protocol (UDP) is not […]


  4. HDLC Encapsulation Protocol » Networkustad
    April 23, 2020 @ 6:03 pm

    […] ISO 13239. It provides both connection-oriented and connectionless service. HDLC also provides flow control and error control by using acknowledgements. Cisco uses a proprietary version of the HDLC protocol […]


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