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TCP/IP: generating polynomial for CRC

S

Shaka

Senior member
Does anyone know what the generating polynomial for CRC checking/generating is for TCP/IP? I've been googling for half and hour and I can't find it... maybe it doesn't exist....
 
Ok, I found out.

The first 180 bits of the ethernet packet (header) uses CRC-32, which is an internation standard. The generating polynomial is: 0x104C11DB7.
 
Stop writing computer viruses! :|


LOL, j/k. Glad you found your thing. Never heard of polynomials being used for CRC, but then again, I am not into cyclical redundancy checking 🙂
 
Originally posted by: VBboy
Stop writing computer viruses! :|


LOL, j/k. Glad you found your thing. Never heard of polynomials being used for CRC, but then again, I am not into cyclical redundancy checking 🙂
Click to expand...

Never heard of polynomials used for CRC? That's what CRC does! Divide the bit string with the polynomial and tag on the remainder at the end...
 
Originally posted by: BCYL
Originally posted by: VBboy
Stop writing computer viruses! :|


LOL, j/k. Glad you found your thing. Never heard of polynomials being used for CRC, but then again, I am not into cyclical redundancy checking 🙂
Click to expand...

Never heard of polynomials used for CRC? That's what CRC does! Divide the bit string with the polynomial and tag on the remainder at the end...
Click to expand...

I must've been thinking of parity checking
 
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