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Re: network question

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On 11/9/23 14:15, Greg Wooledge wrote:
> On Thu, Nov 09, 2023 at 02:05:49PM -0500, gene heskett wrote:
>> I have plugged in a supplied cat-5 jumper into a port of the local switch
>> serving that room and now need to find it on my local net IF it has a ping
>> responder.
>>
>> So the questions  are:
>> What do I need to change in my network config on this machine so I can ping
>> all 65536 address of the 192.168 block of ipv4 address?
>>
>> Will changing the CIDR, presently /24 to /16 be sufficient?
> 
> What makes you think the printer would be configured with a 192.168
> address?  Just hoping?  Blind faith isn't your best choice here.
> A vendor shipping a device with some randomly selected 192.168.x.y
> address and hoping that it matches the user's network *and* doesn't
> conflict with any existing device -- that would be silliness.
> (And remember, 192.168 is just one of *three* separate private ranges
> that could be used.)
> 
> A much more reasonable guess would be that it's configured with a DHCP
> client, and that your network's DHCP server will give it an address.
> Then, you should be able to see something about that in the DHCP
> server's logs.
> 
> Another reasonable guess is that once the printer gets a DHCP address,
> it'll start broadcasting about itself using the standard autodiscovery
> stuff.  CUPS should be able to see it, if you can figure out which name
> belongs to it.

I hadn't considered that Greg, thanks & lemme check. But since the add 
new printers has never worked, it didn't spoil its record.  cpus-browsed 
is not installed as that seems to be the only way to disable the broken 
auto-config and let the brother supplied drivers work. As I've stated 
many times before, they do not run these printers at all well,

I hadn't considered that
> If you still don't have a DHCP server on your network for religious
> reasons, well, maybe it's time to change that.
> 
Possibly. ATM I've cobbled up a bash script to look for a ping response 
but because it waits .2 seconds for a -c1, it is quite slow.

Thanks, take care & stay well.
> .

Cheers, Gene Heskett.
-- 
"There are four boxes to be used in defense of liberty:
  soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
  - Louis D. Brandeis

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Thread

network question gene heskett <gheskett@shentel.net> - 2023-11-09 20:10 +0100
  Re: network question Greg Wooledge <greg@wooledge.org> - 2023-11-09 20:20 +0100
    Re: network question gene heskett <gheskett@shentel.net> - 2023-11-10 03:40 +0100
  Re: network question <tomas@tuxteam.de> - 2023-11-09 20:50 +0100
    Re: network question gene heskett <gheskett@shentel.net> - 2023-11-10 03:30 +0100
      Re: network question <tomas@tuxteam.de> - 2023-11-10 07:00 +0100

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