Packet Sniffing

Packet Filtering information required

Hi, One of our PC which is running on REDHat is sending SMTP packets to the firewall. Though the firewall drops the packet, it logs the same. We wanted to know : 1. IF we have to run a packet capture tool, where do we run ? - on the firewall or the PC ? 2. We ran network monitoring tool, but did...

Inbound traffic is coming from router IP, not internet IP. Why?

Hello, thank you for your time. I have recently noticed a strange occurence going on with inbound traffic. The other day, I helped my friend set up his network. icmp ping was good. while sniffing, I first noticed inbound tcp traffic to me was not coming from my friend's IP address, but coming from...

Is it necessary to be connected to sniff traffic over a wired network?

Is it necessary to be connected to sniff traffic over a wired network?

Solutions for sniffing?

Hello Guys. Can anybody help me know that how to protect traffic from being sniffed? One solution is encryption, anything else ? Your answers awaited. Cheers. Rahul

Need help with packet sniffing

I am doing a sniffer project but I have one problem. This program only receives our host-related packets. I need to know how to receive all packets in the transmission medium. Can anyone help?