Now, both works but I just got pissed off in a particular situation where sed wasn’t an options (the file was literally few GB’s in size and most text editors would just freeze) and to make things worse, I needed to filter a lot of info and only keep source and destination IP addresses in there for privacy’s sake. If you’ve tried this and looked around the interwebs, you’d surely know that there’s not many guides available and most people would just tell casually “just use sed” or use “WireEdit” and pay some fees for their license. This maybe required when you’re trying to send the capture file to someone that you don’t really share your real IP’s with or you just want to change cause you can. I’m sure you bumped into situations where you needed to fake IP address in a capture file.
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