I'd like to monitor my nic with tcpdump but I'm unclear on how to have it log only errors. I read the man page and I'm unclear as to a way for tcpdump to spit out just errors. I guess I could pipe it though grep but what strings would I look for to kick the errors to a file? I ran it for a while with all packets going to a file but it got big in a hurry. All help is appreciated. Scott