>uriel:~% ping -c 3 anoncvs.netbsd.org
>PING anoncvs.netbsd.org (18.181.0.44): 56 data bytes
>64 bytes from 18.181.0.44: icmp_seq=0 ttl=238 time=54.296 ms
>64 bytes from 18.181.0.44: icmp_seq=1 ttl=238 time=115.679 ms
>64 bytes from 18.181.0.44: icmp_seq=2 ttl=238 time=81.118 ms
>
>----anoncvs.netbsd.org PING Statistics----
>3 packets transmitted, 3 packets received, 0.0% packet loss
>round-trip min/avg/max/stddev = 54.296/83.698/115.679/30.773 ms
>uriel:~% traceroute anoncvs.netbsd.org
>traceroute to anoncvs.netbsd.org (18.181.0.44), 30 hops max, 40 byte packets
> 1  cisco.sproul.swarthmore.edu (130.58.82.1)  1.401 ms  3.479 ms  1.217 ms
>...
>15  ihtfp.mit.edu (192.233.33.3)  49.998 ms  114.910 ms  111.862 ms
>16  NW12-RTR-FDDI.MIT.EDU (18.168.0.16)  54.544 ms  82.773 ms  53.632 ms
>17  * * *
>
>(I presume that mit.edu drops incoming traceroutes, as does
>swarthmore.edu, for security reasons.)

not necessarily.  netbsd (1.3.3, at least, 1.4Y does it) doesn't seem
to return icmp port unreachables for aliased addresses.

-- 
|-----< "CODE WARRIOR" >-----|
codewarrior@daemon.org             * "ah!  i see you have the internet
twofsonet@graffiti.com (Andrew Brown)                that goes *ping*!"
andrew@crossbar.com       * "information is power -- share the wealth."