>A little more testing reveals that we have difficulty running TRACEROUTE,
>but when we
>switch it to use ICMP ECHO instead of UDP Datagram, it will work.
>IS our UDP screwed up somehow? We can TELNET, and FTP (uses TCPIP), but
>I believe TRACEROUTE, PING, DNS resolution uses UDP
Traceroute sends UDP, but receives ICMP back. Ping sends and receives
ICMP. DNS sends and receives UDP (it can optionally use TCP, but uses UDP
>>Do you pass through a router?
>>A router can be programmed to ignore ping, or even send BUT not receive, or
>>> I can't get DNS to work on my Sparc Machine. I've had the problem on my
>>> Sparc, and also on my X86 Solaris.
>>> Before you tell me what files I have to set, I have done them all. Here
>>> what is curious:
>>> I can't ping!!!
>>> I can ping to an outside address, and it tells me it's alive. However,
>>> I send datagrams, it will send them, but not recieve any.
>>> When I do NSLOOKUP (the res_mkquery call times out after sending the
>>> request). I presume it can't read for some reason.
>>> Now the strange thing is that I can use IP addresses directly to do ftp,
>>> telnet, or even Internet. But DNS doesn't work, and I think it all
>>> back to my inability to recieve packets using the basic PING command.
>>> Thanks in advance
Genuity, Burlington, MA
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