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Special Forums IP Networking Server setup for multiple IP routing? Post 302967843 by mrgruen on Monday 29th of February 2016 07:34:20 AM
Old 02-29-2016
Server setup for multiple IP routing?

Hey there,

I am a network administrator of a student dorm. Me and my team (we do this in our spare time) have the task to upgrade and rebuild our dorm intern network. But unfortunately we don't have that much experience with server setup and ip-routing and stuff. So here is the topic I want to ask you about:

Currently our users can connect one device, which is addressed with a static ip-address (so we have quite few external ip addresses). Our boss wants us, to set up a few access points, so that the users can use wifi, provided by us. So far, so good. But we don't have as many ip addresses as we would need to cover at least 2 devices per user. So we thought about this and came up with a idea, to use our server as a router for 400+ ips. So that each student has its own private network with local ip-addresses, routed to one external ip address, special for each user.
So for example it would look like this:
User 1: (192.168.0.100;192.168.0.10)=>153.126.30.101=>Gateway=>Internet
User 2: (192.168.0.101;192.168.0.50)=>153.126.30.102=>Gateway=>Internet
...
User 479: (192.168.0.103;192.168.0.105;192.168.0.161)=>153.126.31.249=>Gateway=>Internet
User 480: (192.168.0.107;192.168.0.150)=>153.126.31.250=>Gateway=>Internet

Is this possible and if yes, do you have some advice what we should have a look into? Or can you even explain, what would be the best way to achieve this?

Best regards,
mrgruen
 

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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)
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