network packet sniffers (free)?

[JoeCDaMan]

I'm taking a networking class and we just wrote a packet analyzer but I wanted to test it on packets other than the ones they provided us with, can someone recomend a good packet sniffer that will get the job done? preferably free...

Thanks

 

[jonmullen]

ethereal

 

[Need4Speed]

Originally posted by: jonmullen
ethereal