03-17-2020
I would like to try and answer your question but I'm completely confused. We need a lot more information to even start to think about it.
However, let me state a couple of facts here (to prompt you to tell us more).
1. Your laptop ip address is 192.168.8.149 and your server address is 192.168.121.72 so if your subnet mask is (typical) 255.255.255.0 then these two addresses are NOT on the same network and so your laptop will send the connection request to its configured gateway. (You could try changing your laptop ip address to 192.168.121.xxx to see if it connects then).
2. You specify a port number on a connection command line when you know that there is a listener on that port number at the other end for the network protocol/service that you are using. If you have a particular service listening on port 8081 then that port number is not also going to work for telnet protocol. By default (ie, without specifying a port number) telnet uses port 23. So you would not specify a different port number on a telnet command line unless you KNOW that a telnet listener is configured on port 8081 at the other end. Telnet will fail to connect otherwise.
If you know all this already then I apologize for not understanding your question but please provide much more information.
Q: Can you ping your target ip address? If that fails then fix that first.
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LEARN ABOUT DEBIAN
rlm_ippool_tool
RLM_IPPOOL_TOOL(8) System Manager's Manual RLM_IPPOOL_TOOL(8)
NAME
rlm_ippool_tool - dump the contents of the FreeRadius ippool database files
SYNOPSIS
If an ipaddress is specified then that address is used to limit the actions or output.
rlm_ippool_tool [-a] [-c] [-o] [-v] session-db index-db [ipaddress]
Mark the entry nasIP/nasPort as having ipaddress
rlm_ippool_tool -n session-db index-db ipaddress nasIP nasPort
Update old format database to new.
rlm_ippool_tool -u session-db new-session-db
DESCRIPTION
rlm_ippool_tool dumps the contents of the FreeRADIUS ippool databases for analyses or for removal of active (stuck?) entries.
Or with the -n argument adds a usage entry to the FreeRADIUS ippool databases.
OPTIONS
-a Print all active entries.
-c Report number of active entries.
-r Remove active entries.
-v Verbose report of all entries.
-o Assume old database format (nas/port pair, not md5 output).
-n Mark the entry nasIP/nasPort as having ipaddress.
-u Update old format database to new.
EXAMPLES
Given the syntax in the FreeRadius radiusd.conf:
ippool myippool {
range-start = 192.168.1.0
range-stop = 192.168.1.255
[...]
session-db = ${raddbdir}/ip-pool.db
ip-index = ${raddbdir}/ip-index.db
}
To see the number of active entries in this pool, use:
$ rlm_ippool_tool -c ip-pool.db ip-index.db
13
To see all active entries in this pool, use:
$ rlm_ippool_tool -a ip-pool.db ip-index.db
192.168.1.5
192.168.1.82
192.168.1.244
192.168.1.57
192.168.1.120
192.168.1.27
[...]
To see all information about the active entries in the use, use:
$ rlm_ippool_tool -av ip-pool.db ip-index.db
NAS:172.16.1.1 port:0x2e8 - ipaddr:192.168.1.5 active:1 cli:0 num:1
NAS:172.16.1.1 port:0x17c - ipaddr:192.168.1.82 active:1 cli:0 num:1
NAS:172.16.1.1 port:0x106 - ipaddr:192.168.1.244 active:1 cli:0 num:1
NAS:172.16.1.1 port:0x157 - ipaddr:192.168.1.57 active:1 cli:0 num:1
NAS:172.16.1.1 port:0x2d8 - ipaddr:192.168.1.120 active:1 cli:0 num:1
NAS:172.16.1.1 port:0x162 - ipaddr:192.168.1.27 active:1 cli:0 num:1
[...]
To see only information of one entry, use:
$ rlm_ippool_tool -v ip-pool.db ip-index.db 192.168.1.1
NAS:172.16.1.1 port:0x90 - ipaddr:192.168.1.1 active:0 cli:0 num:0
To add an IP address usage entry, use:
$ rlm_ippool_tool -n ip-pool.db ip-index.db 192.168.1.1 172.16.1.1 0x90
rlm_ippool_tool: Allocating ip to nas/port: 172.16.1.1/144
rlm_ippool_tool: num: 1
rlm_ippool_tool: Allocated ip 192.168.1.1 to client on nas 172.16.1.1,port 144
SEE ALSO
radiusd(8)
AUTHORS
Currently part of the FreeRADIUS Project (http://www.freeradius.org) Originally by Edwin Groothuis, edwin@mavetju.org
(http://www.mavetju.org)
Mailing list details are at http://www.freeradius.org/
RLM_IPPOOL_TOOL(8)