739 views
0 votes
0 votes
Can the header length of IPV4 change at the router? If yes, then why?

2 Answers

1 votes
1 votes

@tusharhigh

The only way the length of IP header could change is when length of options field would change….

 we have record route option where the IP address gets added each time to options field when it passes through each router giving us the entire route from source to destination....

IPv4 is a connectionless protocol used for packet-switched networks. It operates on a best effort delivery model, in which neither delivery is guaranteed, nor proper sequencing or avoidance of duplicate delivery is assured....

Internet Protocol Version 4 (IPv4) is the fourth revision of the Internet Protocol and a widely used protocol in data communication over different kinds of networks.

IPv4 is a connectionless protocol used in packet-switched layer networks, such as Ethernet....

It provides a logical connection between network devices by providing identification for each device.

There are many ways to configure IPv4 with all kinds of devices – including manual and automatic configurations – depending on the network type…

IPv4 is defined and specified in IETF publication RFC 791.

IPv4 uses 32-bit addresses for Ethernet communication in five classes: A, B, C, D and E.

Classes A, B and C have a different bit length for addressing the network host.

Class D addresses are reserved for military purposes, while class E addresses are reserved for future use.

IPv4 uses 32-bit (4 byte) addressing, which gives 232 addresses.

IPv4 addresses are written in the dot-decimal notation, which comprises of four octets of the address expressed individually in decimal and separated by periods, for instance, 192.168.1.5....

 

1. https://en.wikipedia.org/wiki/IPv4

 

Related questions

0 votes
0 votes
1 answer
3
viral8702 asked Dec 2, 2023
203 views
In fragmentation, if any fragment gets lostthen in which case whole packet will be sent again?and in which case only that fragment will be sent again?