On Nov 25, 2013 1:51 PM, "Jason Pope" <boards188@gmail.com> wrote:
------------------------------ Message: 2 Date: Sun, 24 Nov 2013 18:47:09 -0800 From: David Birdsong <david@imgix.com> To: nanog@nanog.org Subject: telnet into a netgear switch? Message-ID: <CAOMvUQfeM_Wnc=
eS1vz0Gh_pp-vZ+sPRk9Td-1U0A34c3A6jdQ@mail.gmail.com>
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Hey all, last night while at the datacenter I was in a pinch to extend a rack's LAN. I compromised and ran out to the local Fry's to buy whatever switch I could find so as to allow some configuration to happen while we wait for the real network gear to show up.
I left before confirming I could access the switch remotely; it was very late and I was pretty groggy and hey, any network gear has to be telnet'table this day and age. Of course I was mostly wrong.
The switch expects some signed payload before allowing a telnet through. I found this: https://code.google.com/p/netgear-telnetenable/...but I'm having a hell of a time getting anything to respond.
The most confounding part is the switch doesn't respond to a single SYN packet on low ports. I'm scanning all the ports now, but if nothing shows up, I'm not sure what a payload is good for if the switch doesn't ACK a single SYN.
I'm curious if anybody's got any tips besides not using Netgear in the datacenter.
I have the MAC, I've IP'd it via DHCP, and the model number: JGS524E and I can power cycle the switch as much as needed.
P.S. long time listener, first time caller. i'm more of a sysadmin dangerously standing in for a proper network person. ------------------------------
Seems to me that you need to use their "Switch Configuration Utility" to manage the switch. I didn't read all the documentation, but that is what jumps out at me after a brief look. Maybe it will allow you to enable telnet or ssh from there. See the following link:
No windows box handy, nor the desire for that hoop. ...but what magic is a windows app going to perform to wake up an unresponsive TCP stack?
http://downloadcenter.netgear.com/en/product/JGS524E
Jason