From: Reisner, Tim (TR126568@exchange.DAYTONOH.NCR.com)
Date: Thu Sep 25 2003 - 22:10:02 GMT-3
Kenneth,
That would be the preferred method, using a loopback address as a peer
address.
From the config guide:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fibm
_c/bcfpart2/bcfstun.htm#1002262
Under Enabling Stun: stun peer-name xx.xx.xx.xx
When configuring redundant links, ensure that the STUN peer names you choose
on each router are the IP addresses of the most stable interfaces on each
device, such as a loopback or Ethernet interface.
The only issue will be that the routing will have to get you there.
Tim Reisner
CCIE #10418
NCR Corp.
High Availability Networking Global Support Center
Phone: (763)535-3274
Cell: (763)227-3179
Email: Tim.Reisner@NCR.com
-----Original Message-----
From: Kenneth Wygand [mailto:KWygand@customonline.com]
Sent: Thursday, September 25, 2003 7:16 PM
To: Reisner, Tim; Charles Church; ccielab@groupstudy.com
Subject: RE: Sending RS232 Data over Frame Relay PVC
Tim & The Group,
One last question for you. Can you send the serial stream to a loopback IP
address as the destination and then that router will send the serial data
out based on the serial interface being part of the stun group?
For example, if I am trying to tunnel a 56K connection from Serial0 on R1
and Serial0 on R2, and R1 and R2 have two different frame relay links
between them (for redundancy) and thus different destination IP addresses,
can I just target the 56K connection toward the loopback interface of the
remote router and visa versa?
Is this how you did it?
Thanks,
Ken
-----Original Message-----
From: Reisner, Tim [mailto:TR126568@exchange.DAYTONOH.NCR.com]
Sent: Wed 9/24/2003 5:06 PM
To: Kenneth Wygand; Charles Church; ccielab@groupstudy.com
Cc:
Subject: RE: Sending RS232 Data over Frame Relay PVC
Kenneth,
I have used STUN for proprietary protocols that are not IBM SDLC.
It
basically just takes the frames off the interface and encapsulates
them and
sends them to the other side of the STUN connection.
Here is a basic config:
Router #1
stun peer-name xx.xx.xx.xx
stun protocol-group 1 basic
interface Serial2/2
encapsulation stun
nrzi-encoding
clockrate 19200
stun group 1
stun route all tcp yy.yy.yy.yy
Router #2
stun peer-name yy.yy.yy.yy
stun protocol-group 1 basic
interface Serial0/0
encapsulation stun
nrzi-encoding
clockrate 19200
stun group 1
stun route all tcp xx.xx.xx.xx
The only problem with this is that it is one to one mapping. Not 1
to 20.
Tim Reisner
CCIE #10418
NCR Corp.
-----Original Message-----
From: Kenneth Wygand [mailto:KWygand@customonline.com]
Sent: Wednesday, September 24, 2003 3:51 PM
To: Charles Church; ccielab@groupstudy.com
Subject: RE: Sending RS232 Data over Frame Relay PVC
Thanks again for the info Charles.
I've been looking up the STUN technology on cisco.com but I haven't
had much
luck finding much information on the technology itself and how it
works,
etc. (to determine if it will work for my application).
I found a lot of configuration examples as well as a F.A.Q. page,
but
nothing that discusses the technology in general.
Any advice?
Kenneth E. Wygand
Systems Engineer, Project Services
CISSP #37102, CCNP, CCDP, MCP 2000, CNA 5.1, Network+, A+ Custom
Computer
Specialists, Inc.
"It's not just about ending up where you want to be, it's about
making the
most of the trip there." -Anonymous
-----Original Message-----
From: Charles Church [mailto:cchurch@wamnet.com]
Sent: Wednesday, September 24, 2003 3:56 PM
To: Kenneth Wygand; ccielab@groupstudy.com
Subject: RE: Sending RS232 Data over Frame Relay PVC
Kenneth,
Check out STUN (serial tunnelling). It can encapsulate
serial data
into IP. I've used it to handle SNA out of older ATM (bank
machines) back
to a central site.
Chuck Church
CCIE #8776, MCNE, MCSE
Wam!Net Government Services
13665 Dulles Technology Dr. Ste 250
Herndon, VA 20171
Office: 703-480-2569
Cell: 703-819-3495
cchurch@wamnet.com
PGP key:
http://pgp.mit.edu:11371/pks/lookup?search=chuck+church&op=index
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf
Of
Kenneth Wygand
Sent: Wednesday, September 24, 2003 3:43 PM
To: ccielab@groupstudy.com
Subject: Sending RS232 Data over Frame Relay PVC
Elite Team,
I have a hub-and-spoke Frame relay network I am looking to implement
- 20
spokes and 1 hub with Frame Relay connections from the hub to each
remote
site. I also have a 56K synchronous serial RS232 line I must
transport over
this frame-relay connection from the hub to each of the remote sites
(proprietary application). ALL REMOTE SITES RECEIVE THE SAME
INFORMATION
FROM THE HUB!
Is there a way I can do this within a Cisco box? Would the DLCI
configuration be able to support these requirements? I'd like to
only send
one copy of the feed into the Cisco router (thus requiring only one
serial
connection) and then copy it 20 times. Cisco said this can be done
within
the frame relay DLCI configuration, but I am not so sure. I'm
assuming that
with this method, I'll still need to use 20 x 56K bandwidth on the
frame
relay link connected to my hub and that's not really a big deal to
me. I
just don't want to have to have 20 serial interfaces on the Cisco
Router to
pump each individual feed (copied 20x) to each remote site.
IP traffic will have to cross the link as well for Internet Access
purposes.
CIR at each remote site will probably be about 256K, including the
56K
synchronous serial connection being carried over this link.
Any suggestions or advice would be greatly appreciated.
Thanks,
Kenneth E. Wygand
Systems Engineer, Project Services
CISSP #37102, CCNP, CCDP, MCP 2000, CNA 5.1, Network+, A+ Custom
Computer
Specialists, Inc.
"It's not just about ending up where you want to be, it's about
making the
most of the trip there." -Anonymous
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