Our ISP has been using a transparent bridge/proxy which is not discoverable by tracert command. It can be discovered using tracetcp only.
Port Scan Details: »pastebin.com/VA9GhDLC
Now, I want to know why are they using it? Is there some kind of spoofing going on?
The ISP offers youtube cache and btcache (Bit torrent Cache).
Please help me find out.