![]() It will have several addresses on different interfaces too choose from – including various Internet-facing interfaces, plus management networks – and might use various address selection algorithms, e.g. (Note that the forwarded IP packets always have the original destination's IP address, not each hop's.)Įach hop identifies itself by sending an ICMP "TTL exceeded" error packet, and needs to pick an apropriate source address for it. ![]() First of all, traceroute doesn't actually show what hop the previous router tried to resolve it shows the address that this hop identifies itself with, which is not always the same address. If my router resolves that hop when resolving 172.217.162.3, it should resolve the hop itself as the destination There is a private IP there, 10.38.0.1, I tried to traceroute and/or ping it. Lets try with traceroute -I as pointed here: Theoretically I get how IP routing and how traceroute work, but this case baffles me. I was just looking into traceroute and trying to understand it's behaviour. ![]()
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