This file is indexed.

/usr/share/ion/configs/loopback-stcp/loopback.rc is in ion-doc 3.0.1~dfsg1-1.

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The actual contents of the file can be viewed below.

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## File created by /usr/local/bin/ionscript
## Tue Jul 14 13:56:36 EDT 2009
## Run the following command to start ION node:
##	% ionstart -I "loopback.rc"

## begin ionadmin 
# ionrc configuration file for loopback test.
#	This uses stcp as the primary convergence layer.
#	command: % ionadmin loopback.ionrc
# 	This command should be run FIRST.
#
#	Ohio University, July 2009

# Initialization command (command 1). 
#	Set this node to be node 1 (as in ipn:1).
#	Use default sdr configuration (empty configuration file name "").
1 1 ""

# start ion node
s

# Add a contact.
# 	It will start at +1 seconds from now, ending +3600 seconds from now.
#	It will connect node 1 to itself
#	It will transmit 100000 bytes/second.
a contact +1 +3600 1 1 100000

# Add a range. This is the physical distance between nodes.
#	It will start at +1 seconds from now, ending +3600 seconds from now.
#	It will connect node 1 to itself.
#	Data on the link is expected to take 1 second to reach the other
#	end (One Way Light Time).
a range +1 +3600 1 1 1

# set this node to consume and produce a mean of 1000000 bytes/second.
m production 1000000
m consumption 1000000
## end ionadmin 

## begin bpadmin 
# bprc configuration file for the loopback test.
#	Command: % bpadmin loopback.bprc
#	This command should be run AFTER ionadmin and ltpadmin and 
#	BEFORE ipnadmin or dtnadmin.
#
#	Ohio University, July 2009

# Initialization command (command 1).
1 

# Add an EID scheme.
#	The scheme's name is ipn.
#	This scheme's forwarding engine is handled by the program 'ipnfw.'
#	This scheme's administration program (acting as the custodian
#	daemon) is 'ipnadminep.'
a scheme ipn 'ipnfw' 'ipnadminep'

# Add endpoints.
#	Establish endpoints ipn:1.1 and ipn:1.2 on the local node.
#	The behavior for receiving a bundle when there is no application
#	currently accepting bundles, is to queue them 'q', as opposed to
#	immediately and silently discarding them (use 'x' instead of 'q' to
#	discard).
#	Note that the custodian endpoint "ipn:1.0" is automatically generated.
a endpoint ipn:1.1 q
a endpoint ipn:1.2 q

# Add a protocol. 
#	Add the protocol named stcp.
#	Estimate transmission capacity assuming 1400 bytes of each frame (in
#	this case, tcp on ethernet) for payload, and 100 bytes for overhead.
a protocol stcp 1400 100

# Add an induct. (listen)
#	Add an induct to accept bundles using the stcp protocol.
#	The induct will listen on port 4556, the IANA assigned default DTN
#	TCP convergence layer port.
#	The induct itself is implemented by the 'stcpcli' command.
a induct stcp 0.0.0.0:4556 stcpcli


# Add an outduct. (send to yourself)
#	Add an outduct to send bundles using the stcp protocol.
#	The outduct will connect to the localhost IP using the
#	IANA assigned default DTN TCP port of 4556.
#	The outduct itself is implemented by the 'stcpclo' command.
a outduct stcp 127.0.0.1:4556 stcpclo

# Start the Daemons.
s
## end bpadmin 

## begin ipnadmin 
# ipnrc configuration file for the loopback test.
#	Essentially, this is the IPN scheme's routing table.
#	Command: % ipnadmin loopback.ipnrc
#	This command should be run AFTER bpadmin (likely to be run last).
#
#	Ohio University, July 2009

# Add an egress plan.
#	Bundles to be transmitted to element number 1 (that is, yourself).
#	Transmission should use the stcp convergence layer for 127.0.0.1:4556
#	See your bprc file or bpadmin for outducts/protocols you can use.
a plan 1 stcp/127.0.0.1:4556
## end ipnadmin 

## begin ionsecadmin
1
e 1

a bspbabrule ipn:1.* ipn:1.* 'HMAC-SHA1' testkey

a key 'testkey' testkey.bin
a key 'testkey2' testkey2.bin

## end ionsecadmin