What is the maximum number of icmp packet can be captured?

What is the maximum number of icmp packet that can capture?

The limit on the number of packets that a capture program can save usually depends on how much disk space you have, since that is where the captured packets will be stored.

What is the minimum maximum size of ICMP packet?

The minimum size of an ICMP packet is 8 bytes, which includes the 8-byte ICMP header without any additional data. The maximum size of an ICMP packet is 65,535 bytes, which includes the maximum payload that can be carried within an IPv4 packet.

What is the maximum size of an IP packet carrying an ICMP packet?

The maximum for any IP packet via ethernet is limited to a maximum of 1508 characters. ICMP packets are typically small but can be configured to use any amount of characters up to the maximum size of a packet.

How do you calculate the checksum of ICMP packet?

To calculate the checksum of an ICMP packet, you first need to create a pseudo-header that includes the source and destination IP addresses, the protocol number (1 for ICMP), and the length of the ICMP packet. Then, concatenate this pseudo-header with the ICMP packet data. The checksum is computed by performing a bitwise one's complement sum of all 16-bit words in the combined data, followed by taking the one's complement of the final sum. Finally, the calculated checksum is inserted into the ICMP packet's checksum field.

Why is it that an ICMP packet does not have source and destination port?

Because ICMP is on the network layer

What is the size of the smallest icmp packet?

64 Bytes.

What packet is used in ping command?

Packet Internet Groper(PING) is an Internet Control Message Protocol(ICMP) request packet for it's working. ICMP packets are used to check networks are live or not. -- By MYNarutoAnime ----

What protocol allows hosts to exchange messages to indicate problems with packet delivery?

ICMP The Internet Message Protocol (ICMP) allows hosts to exchange messages to indicate the status of a packet as it travels through the network.

What transport layer protocol does ping use?

Assuming IPv4 ICMP. Ping uses IP for transport. Ping in itself is an "Echo Request", which is a function of the ICMP protocol. The IP Packet will carry the ICMP protocol from end-to-end. ICMP has a protocol number of 1, so the "Protocol" field in the IPv4 header will contain "1" as a reference to the ICMP payload. For IPv6, ICMPv6 is used, and the transport will be IPv6.

Which protocol allows host to exchange messages to indicate problems with packet delivery?

ICMP

What is the max amount of bytes you can send in a Ping before it is considered illegal?

The maximum amount of data that can be sent in a standard ICMP Echo Request (Ping) packet is typically 65,527 bytes, which includes the IP header and ICMP header. However, the usual maximum payload size is 65,507 bytes, since 20 bytes are reserved for the IP header and 8 bytes for the ICMP header. Going beyond this limit would result in fragmentation or may not be processed correctly by the receiving system, but it is not inherently "illegal." It’s essential to adhere to network policies and regulations regarding packet sizes to avoid issues.

What are the main functions of icmp?

Internet Control Message Protocol (ICMP), documented in RFC 792, is a required protocol tightly integrated with IP. ICMP messages, delivered in IP packets, are used for out-of-band messages related to network operation or mis-operation. Of course, since ICMP uses IP, ICMP packet delivery is unreliable, so hosts can't count on receiving ICMP packets for any network problem. Some of ICMP's functions are to: * Announce network errors, such as a host or entire portion of the network being unreachable, due to some type of failure. A TCP or UDP packet directed at a port number with no receiver attached is also reported via ICMP. * Announce network congestion. When a router begins buffering too many packets, due to an inability to transmit them as fast as they are being received, it will generate ICMP Source Quenchmessages. Directed at the sender, these messages should cause the rate of packet transmission to be slowed. Of course, generating too many Source Quench messages would cause even more network congestion, so they are used sparingly. * Assist Troubleshooting. ICMP supports an Echo function, which just sends a packet on a round--trip between two hosts. Ping, a common network management tool, is based on this feature. Ping will transmit a series of packets, measuring average round--trip times and computing loss percentages. * Announce Timeouts. If an IP packet's TTL field drops to zero, the router discarding the packet will often generate an ICMP packet announcing this fact. TraceRoute is a tool which maps network routes by sending packets with small TTL values and watching the ICMP timeout announcements.By far the most common use of icmp is ping.