Re: My continuing netboot problems

[Mouse <mouse%Rodents-Montreal.ORG@localhost>]

> OK, so now I have done a re-wiring of the network so that the laptop
> and microVAX are not separated by a switch.  [...]

> I can still not get a ping response from anybody at the vax console,
> but everybody that I have tried can ping the vax.

Curious.

> Now I get a new output from wireshark:

> 11    1902.418773061    Sagemcom_03:3c:20    Broadcast    ARP    60   
> Who has 192.168.2.30? Tell 192.168.2.1
> 12    1902.420733167    Dec_04:fd:07    Sagemcom_03:3c:20    ARP   
> 60    192.168.2.30 is at 08:00:2b:04:fd:07 (the microVAX MAC address)
> 13    1974.207263126    192.168.2.30    192.168.2.1    DNS    84   
> Standard query 0x319e PTR 1.2.168.192.in-addr.arpa
> 14    1974.208789432    192.168.2.1    192.168.2.30    DNS    107   
> Standard query response 0x319e PTR 1.2.168.192.in-addr.arpa PTR mynetwork

I suspect you've introduced some spurious line breaks there.  I don't
know wireshark, but the first two packets have their line breaks in
inconsistent spots.  (In this case, it's easy enough to compensate, but
sometimes it's not so easy, and precise details can matter.)

> when I type ping 192.168.2.1 on the microVAX console!  My question is
> why would it issue a DNS lookup when I am using a hard-coded private
> I{P address?

It's trying to reverse-resolve the address to a name.  If you ping -n
then it should stop doing that.

This actually could be the problem: it could be that ping is working
fine but that it's not printing anything because it's trying to resolve
something and (for whatever reason) not getting any answer.  It may be
that if you wait a minute or two it'll time out and start printing
things.

Or, just use ping -n to suppress the addres->name translations.

Of course, this still leaves open the question of why address->name
translations would be timing out when you're seeing an answer to the
query.  But -n might at least remove one variable from the mess.
Indeed,the ARP packets argue that the MicroVAX can indeed communicate
in both directions.

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