a simple enquiry:
how can i simulate this ping message on cmd ? "ttl expired in transmit"
Create a routing loop. Get two routers and point the next hop IP address at each others interfaces. That should do it.
Traceroute to something that is more than one hop away. You will get those from the routers you are going through. There is no way that I know of to craft a ttl exceeded packet with a router, but it is pretty easy to coax one out of it.
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