Tracert returns 0.0.0.0

[Brenden_E]

Hi,

Hoping someone tech savvy can explain this. When doing a tracert to a specific IP I get a bunch of hops and then before it reaches it's destination I get 0.0.0.0 which times out on IS. Anyone have any idea what this IP means? I know it's suppose to mean all IP addresses on the local machine, but in context of the trace route I dunno.

 

[savage]

My guess is that the ICMP error that traceroute uses to detect hops is being sourced from 0.0.0.0 for some reason. Your modem wouldn't be performing any RPF on incoming traffic, so there is nothing to filter out 0.0.0.0 as an invalid source address (or it may actually be valid for these ICMP errors - it's the "unspecified" address).

 

[Brenden_E]

Appears that it's a firewall that gives that result. Who knew