What's the trick to make Ethernet work on an HP 2100TN printer?

According to that page, it is DHCP configured and thus a dynamic address
assignment.

 

Yes, it can keep the same IP even if the end of the IP Lease whas been
reached.

 

OK. I found it!
https://groups.google.com/forum/#!forum/comp.mobile.android

It must be a new newsgroup, as I had searched in the past for an Android
newsgroup.

 

What's interesting is that it kept the same IP address from one house to
another, under different networks (both using 191.168.1.1 as the gateway).

Thanks David for your advice. I appreciate all your help!

 

"Config By : DHCP "

I won't go into the DHCP protocol to explain why it will stay at
192.168.1.16 for a lengthy period or how a new IP could eventaully be
assigned (Leased) to it.

BTW: That's a HP Jetdirect 600n and the last Firmware is Version = G.08.49
Your Telnet session shows; "G.07.20" so it could be upgraded. However it
isn't too important and you are just learning about HP JetDirect Print
Servers.

 

Ok but, please don't use Google Groups !

 

No problem. I have managed a few hundred HP Printers on HP JetDirect Print
Servers.

 

Sure it would. It will use the same address as before unless there is a
reason not to (eg that address is in use by something else).

 

Hi,
Practical wisdom is if all works the way you are satisfied. Leave it be.
Reason to update driver or firmware is if want particular feature or
improvement is needed according to the release note. So many folks just
update for the sake of update's and getting into trouble. PCLs for PC,
PS is for Mac(Apple).

If you are curious, reboot the router and see if IP changes. Or you can
assign fixed IP from router GUI or from printer set up. My WiFi printer
and NAS are given fixed IP for the convenience.

Under one submask you can have a range of IP(0 to 256) but if you don't
have that many devices, limit it to like 0 to 20. No need to wasting
time scanning all those unused IP addresses. My router has IP range of
gateway one plus 15 which is enough for our home network.

 

Heh heh. I've NEVER used Google Groups. I just used the Deja-News-like
search engine to clarify that the suggested newsgroup existed (because
when I updated my group list in my nntp client, that group still had
not shown up).

Once I confirmed that the group actually existed, I realized there
was a problem with my nntp client group list.

So, I manually deleted my nntp client & newsgroup files, and re-installed
the nntp client and lo and behold, when I refreshed the group list,
that suggested android group FINALLY showed up.

I'm not sure WHY it didn't show up before. Maybe it's a new group?
But, it seems active - which is all that matters.

Thanks for that suggestion, and all your other explanations!

 

Is the "JetDirect" print server this "box" sticking out the
side of the printer?
http://i40.tinypic.com/25r166w.gif

Or is the JetDirect just firmware running on the motherboard?

 

Yes, it is. It was created only a month, maybe two months ago.

 

Ah. I see. I start at 192.168.1.2 and let DHCP assign the addresses.
I don't have 16 PCs and phones, so, I guess there's nothing stopping
the printer from keeping its old address (from another home) of
192.168.1.16 then. Even with DHCP.

 

Thanks for that foreknowledge.

I'll probably keep the "JetDirect" at the current version unless I know
of a reason to change it. I don't want to have to reconfigure the windows
machines if I don't have to. I'm not sure what's transparent and what
isn't, to the windows and Linux machines.

BTW, I think "this" is the JetDirect box on the side of the printer:
http://i40.tinypic.com/25r166w.gif

Right?

 

I can't count the number of times I've worried that I've bricked
a device simply upgrading it to the latest firmware.

So I don't disagree with you.

 

Ah, that might explain it then.
Thanks!

 

Your linux method looks near optimal.

 

to end a stuck telnet session: ctrl-] Q enter

 

Yes, inside that metal cage and under that plastic door.

 

Well I have upgraded hundreds of JetDirects with no sequalae. Either using HP Download
Manager or via HP Web JetAdmin over TCP/IP or with the printer connected via USB or
parallel port. I keep HP Download Manager on my notebook with all the JetDirect Firmware
files so I can download the latest Firmware to client printers as needed.

If the printer has power and you leave it alone for the time it takes to download the
Firmware to the printer, it will work as expected.