problem about ethernet type,help me

[cluefly]

hi ,all
i have a problem about ethernet type,
LNS often ejects alert message like this:
http://www.wilderssecurity.com/attachment.php?attachmentid=183304&stc=1&d=1158553216
what does this type of the ethernet means?

I went to http://www.iana.org/assignments/ethernet-numbers to find information about ethernet type.
but the result is like these :

Ethernet Exp. Ethernet Description
------------- ------------- -----------
decimal Hex decimal octal
0000 0000-05DC - - IEEE802.3 Length Field

from 0x0000 to 0x05DC ,the description is IEEE802.3 Length Field.
so who can tell me about type 0x002C ,0x00e2 , 0x0063, 0x0054 ,and so on...


thank to all.
thanks

[Climenole]

Hi cluefly :-)

You say you have a problem but not what is the problem... ;-)

The Ethernet type for IPV4 is 0x0800 or 800 in the raw log of LNS.

Ref.: http://en.wikipedia.org/wiki/Ethernet

May be the problem is with the choice of Network Adapter in LNS?

Be more specific please.

:-)

[cluefly]

thank you! Climenole's .
i know that the Ethernet type for IPV4 is 0x0800 or 800.
i just wanna understand the meaning of ethernet type ,just like type 0x002C ,0x00e2 , 0x0063, 0x0054

[Frederic]

When the number is below 1500 (5DC in hexa), it is not a type but a length.
0026 is common but I don't know what it is exactly. I thought it could be used by some netbeui ethernet frames, but this protocol is supposed to have a type normally.

Frederic

[cluefly]

hi,, Frederic
thank you for your reply !

yes,the number is below 1500 (5DC in hex), it is a length.
so when the number is below 1500 ,i will get no information besides length?

[Frederic]

Hi cluefly,

This is something I would like to know too...

Frederic