Hi... > According to the 0.75 sorcecode ICMP is still the default prot used, > and the definition of MTR from bitwizards homepage disagress with you: > > "mtr combines the functionality of the 'traceroute' and 'ping' > programs in a single network diagnostic tool. > As mtr starts, it investigates the network connection between the > host mtr runs on and a user-specified destination host. After it > determines the address of each network hop between the machines, it > sends a sequence ICMP ECHO requests to each one to determine the > quality of the link to each machine. As it does this, it prints > running statistics about each machine. For a preview take a look at > the screenshots." > > Even if you use UDP/TCP or whatever, the return packet will be ICMP > and that will be ratelimited by any carrier worth there salt...
...recent attempts to get mtr working through a cisco fwsm got me sniffing, and yes indeed, icmp is the protocol in play with mtr (both outbound and inbound). Rgs, craig
