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Switch: HP ProCurve 2910AL-48G - J9147A

This switch is brand new straight from HP.

Anyone familiar with ser2net for creating a terminal server to connect from usb>serial>console port on a HP procurve switch? I've done this 4 times in the past couple months and had 0 issues. This exact same new one isn't working.

Guides I used as a reference:

root@mycomp:/dev# lsusb
Bus 001 Device 006: ID 0557:2008 ATEN International Co., Ltd UC-232A Serial Port [pl2303]

root@mycomp:/dev# dmesg | grep tty
[ 0.000000] console [tty0] enabled
[ 0.738224] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 0.963603] 00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[16153.422206] usb 1-1.1: pl2303 converter now attached to ttyUSB0
[18163.982680] pl2303 ttyUSB0: pl2303 converter now disconnected from ttyUSB0
[18167.091054] usb 1-1.2: pl2303 converter now attached to ttyUSB0

3002:telnet:0:/dev/ttyUSB0:9600 8DATABITS NONE 1STOPBIT banner

root@mycomp -> telnet localhost 3002
Connected to localhost.
Escape character is '^]'.

ser2net port 3002 device /dev/ttyUSB0 [9600 N81] (Debian GNU/Linux)

Then it just hangs there, doesn't take me to a prompt as it did in the past with other brand new switches. If you type anything you get:

Connection closed by foreign host.

Any ideas on how to troubleshoot this? Also if there is a better way of doing this, feel free to inform me, I have 3 new switches that ideally need to be deployed by end of day tomorrow.

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not sure if it's any better, but check out conserver – sendmoreinfo Jun 6 '13 at 22:20
up vote 1 down vote accepted

I saw this problem when I enabled HW flow control (RTSCTS) on my configuration line in the /etc/ser2net config file. You can disable this by adding -RTSCTS to the line.

I also had the issue that my session would immediately disconnect with:

Connection closed by foreign host.

I solved this by adding "LOCAL" to the configuration line which ignores the modem monitoring lines.

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