[AusNOG] Console server question.
nanog at 85d5b20a518b8f6864949bd940457dc124746ddc.nosense.org
Sat Nov 6 09:04:19 EST 2010
On Fri, 5 Nov 2010 11:33:32 +1000 (EST)
craig at askings.com.au wrote:
> Opengear will probably do 90% of that (not sure about AD/radius) They use
> standard RJ-45 / Cat-5 with adaptor cables to do Cisco rollover / APC
> rj-11 / DB9 etc.
> It's a linux box under the hood and their CTO is in Brisbane so if you
> need a particular feature. There is a good chance that lunch and a few
> beers might get it for you :P
One feature I really like about using Ciscos is the "ip alias" command.
It allows you to map an IP address to the console server TCP ports.
IOW, it does IP/TCP port 23 a.k.a. telnet to console server serial
TCP port translation. The advantage is that because a console serial
port is now an IP address, you can then put it in DNS, and also don't
have to care anymore about what console server it is actually connected
Here is an (off the top of my head) config of how you use it -
int loopback 0
ip address 172.16.0.1 255.255.255.0
ip ospf network point-to-point ! important because ospf normally announces loopbacks as host routes
ip alias 172.16.0.2 2001
ip alias 172.16.0.3 2002
ip alias 172.16.0.4 2003
router ospf 64512
network 172.16.0.1 0.0.0.0 area 0
After that, if you telnet to 172.16.0.2 (or a good DNS name for it),
you'll actually be connected to TCP port 2001 on the router announce
the 172.16.0/24 route.
> > Hey All,
> > Thought I might float the question here as I have been looking into some
> > different options for a console server and out-of-band management.
> > Ideally I would be after the following but ;
> > * Option for ADSL/dialup connection to device.
> > * AD/radius auth and standard username/password.
> > * Multi-user.
> > * SSH v2.
> > * Standard cables (long shot :().
> > * 4, 16, 24+ ports (I have a few things I want to get to with
> > different requirements).
> > Just really looking to see if there is one killer device out there or
> > which ones to steer clear of.
> > Simon Thomason
> > Call RACQ Auto Glass on 13 1905 today for all your windscreen replacement
> > and chip repair needs. Members receive 20% off.
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