Sanchit Gurukul

Serving Information Simply

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6 minutes
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  • What is DNS (Domain Name Server)?

    The Domain Name System (DNS) is phone book for Internet. All computers on the Internet, from your smart phone or laptop to the servers that serve content for massive retail websites, find and communicate with one another by using numbers. These numbers are known as IP addresses. When you open a web browser and go…

  • What is ARP (Address Resolution Protocol)?

    Address Resolution Protocol (ARP) is an important protocol of the network layer in the OSI model, which helps find the MAC (Media Access Control) address given the system’s IP address. The ARP’s main task is to convert the 32-bit IP address (for IPv4) to a 48-bit MAC address. In other word, Address Resolution Protocol (ARP)…

  • What is MTU (Maximum Transmission Unit)?

    In networking, maximum transmission unit (MTU) is a measurement representing the largest data packet that a network-connected device will accept. MTU is measured in bytes — a “byte” is equal to 8 bits of information, meaning 8 ones and zeroes. 1,500 bytes is the maximum MTU size. What is Jumbo Frame? A jumbo frame is…

  • Dynamic Host Configuration Protocol (DHCP)

    Dynamic Host Configuration Protocol (DHCP) is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related configuration information such as the subnet mask and default gateway. RFCs 2131 and 2132 define DHCP as an Internet Engineering Task Force (IETF) standard based on Bootstrap Protocol (BOOTP), a protocol…

  • What is Simple Network Management Protocol (SNMP)?

    Simple Network Management Protocol (SNMP) is a networking protocol used for the management and monitoring of network-connected devices in Internet Protocol networks. The SNMP protocol is embedded in multiple local devices such as routers, switches, servers, firewalls, and wireless access points accessible using their IP address. SNMP provides a common mechanism for network devices to…

  • Cisco ASA – Packet Capture

    The packet capture process is useful when you troubleshoot connectivity problems or monitor suspicious activity. In addition, you can create multiple captures in order to analyze different types of traffic on multiple interfaces. Collecting captures on ASA You can enable captures on ASA either from CLI or from ASDM Enable captures on ASDM Go to…

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Sanchit Agrawal

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