We have the following distributed Spectrum 9.2 infrastructure
approaching a production rollout:

 

(4) Linux Red Hat 5.4 ES - OC Consoles - geographically located for
redundancy

(1) Linux Red Hat 5.4 ES - MLS Primary / secondary pair - also functions
as the Trap Exploder & Trap Director

(9) Linux Red Hat 5.4 ES - SS primary/secondary pairs to monitor our
11,000 network devices 

(1) Windows 2003 Server - SS primary secondary pair that basically
support our SANM requirements since SANM not available on Linux

(2) Windows 2003 Server - One is setup for SRM primary - the secondary a
cold backup.  This function will not be included below as the data is
stored outside the isolated network.  We got started with the Windows
SRM approach back on 9.0 not supporting SRM/BOXI on Red Hat 5.x.

 

All primary/secondary MLS/SS/SANM server pairs are split between two
different geographic locations

 

Here is our challenge - we provide application processing for a client
that has very strict security requirements.  One of those is that
monitoring data cannot be stored outside of the network segment where
it's network devices are monitored. Based on that requirement we are
placing a primary/secondary SS pair inside the isolated segment (SDC
would not work here) to do the actual monitoring, process traps, etc and
store the SSdb & DDM data inside that network.  Spectrum Admin's have a
special VPN access to these servers for SSH access.

 

The challenge comes in with CORBA connectivity between the OC consoles,
MLS, and SANM that reside outside that network, to the primary/secondary
SS pair inside the isolated network.  A second requirement is no clear
text traffic inside the isolated network nor any tightly nailed down
connections to other network segments if needed.   Based on that we are
using SNMP V3 to monitor the network devices and handle the device
traps.  As a note running a standalone Spectrum environment for this
client is not an option either as the NOC will not work with two
different sets of OC consoles.

 

The connectivity of the NOC & Spectrum Admin's to the OC consoles, is
addressed with SSL connectivity from Java clients to the OC consoles.
Now what is left is the CORBA connectivity between the MLS, OC Console,
SANM, and the isolated SS primary secondary pair.

 

All suggestions point to using IPSec tunnels (17 pairs) at this point
but we are getting a lot of FUD (Fear Uncertainty & Doubt) from our
Linux & Windows Admin's stating we cannot do Windows to Linux IPSec
tunnels and the Linux to Linux is too much overhead on the environment.
I have asked them to quantify the FUD factor as to how much is the
performance overhead.  IPSec tunnels are not a standard, setup for our
organization, even though we have had Windows to Windows IPSec tunnels
for years on our Unicenter TNG/NSM environment.

 

This isn't a large number of network devices being monitored (under 100)
so the overhead on the SS pair will not be much and the processing power
is 4 x what we normally have available for our Linux SS (16GB Memory & 4
Dual Core processors).  Yes, I know that is a bit overkill for 100
network devices.  We might be more concerned with the virtual MLS and/or
OC images, the SANM's should be okay as they will have low usage.

 

So . . .

 

Does anyone have any experience with IPSec tunnels carrying the CORBA
connectivity between Spectrum resources?  Windows to Linux & Linux to
Linux configurations that would be willing to share their experience?
Or can you suggest a better method to provide server to server (end to
end) encryption & security of that clear text CORBA traffic?

 

 

Thanks

 

Raymond Ferber 

IT Architect

 

Office 402-777-1868

Mobile 402-960-5126

 

[email protected]




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