<Table> <Tr> <Th> Media for IP transport </Th> <Th> Maximum transmission unit ( bytes ) </Th> <Th> Notes </Th> </Tr> <Tr> <Td> Internet IPv4 path MTU </Td> <Td> At least 68 , max of 64 KiB </Td> <Td> Practical path MTUs are generally higher . Systems may use Path MTU Discovery to find the actual path MTU . Routing from larger MTU to smaller MTU causes IP fragmentation . </Td> </Tr> <Tr> <Td> Internet IPv6 path MTU </Td> <Td> At least 1280 , max of 64 KiB , but up to 4 GiB with optional jumbogram </Td> <Td> Practical path MTUs are generally higher . Systems must use Path MTU Discovery to find the actual path MTU . </Td> </Tr> <Tr> <Td> Ethernet v2 </Td> <Td> 1500 </Td> <Td> Nearly all IP over Ethernet implementations use the Ethernet V2 frame format . </Td> </Tr> <Tr> <Td> Ethernet with LLC and SNAP </Td> <Td> 1492 </Td> <Td> </Td> </Tr> <Tr> <Td> Ethernet jumbo frames </Td> <Td> 1501 -- 9198 or more </Td> <Td> The limit varies by vendor . For correct interoperation , the whole Ethernet network ( segment ) must support the same maximum frame size . Jumbo frames are usually only seen in special - purpose networks . </Td> </Tr> <Tr> <Td> PPPoE v2 </Td> <Td> 1492 </Td> <Td> Ethernet v2 MTU ( 1500 ) less PPPoE header ( 8 ) </Td> </Tr> <Tr> <Td> DS - Lite over PPPoE </Td> <Td> 1452 </Td> <Td> Ethernet v2 MTU ( 1500 ) less PPPoE header ( 8 ) and IPv6 header ( 40 ) </Td> </Tr> <Tr> <Td> PPPoE jumbo frames </Td> <Td> 1493 -- 9190 or more </Td> <Td> Ethernet Jumbo Frame MTU ( 1501 - 9198 ) less PPPoE header ( 8 ) </Td> </Tr> <Tr> <Td> WLAN ( 802.11 ) </Td> <Td> 2304 </Td> <Td> The maximum MSDU size is 2304 before encryption . WEP will add 8 bytes , WPA - TKIP 20 bytes , and WPA2 - CCMP 16 bytes . </Td> </Tr> <Tr> <Td> Token Ring ( 802.5 ) </Td> <Td> 4464 </Td> <Td> </Td> </Tr> <Tr> <Td> FDDI </Td> <Td> 4352 </Td> <Td> </Td> </Tr> </Table>
what is the maximum size of an ip packet for ipv4 or ipv6
max of 64 KiB