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DHCP RELAY over L2TPv3 (view source)

Revision as of 15:09, 2 August 2023

452 bytes added ,  15:09, 2 August 2023
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== Configuration Scheme ==
 
== Configuration Scheme ==
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I will paste a Topology Image here
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[[File:Topology LT2Pv3.png|border|class=tlt-border|750x750px]]
    
== DHCP Server Settings ==
 
== DHCP Server Settings ==
    
=== DHCP Pool ===
 
=== DHCP Pool ===
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Enter the router's WebUI, go to '''Network > Interfaces > Ethernet LAN''' and click the '''<nowiki/>'Edit'''' button on the right side of the interface to set the LAN network address.
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Login to the router's WebUI and navigate to '''Network → Interfaces → Ethernet LAN.''' Click the '''<nowiki/>'Edit'''' button on the right side of the interface to set the LAN network address.
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[[File:Server a.png|center|thumb|464x464px|LAN network for DHCP server]]Under '''DHCP SERVER''' set parameters for the DHCP pool.
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[[File:Server new 02.png|alt=DHCP poll parameters|center|thumb|464x464px|DHCP pool parameters|border]]
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=== Set up Mobile WAN as Main WAN ===
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[[File:Server new 01 fixed.png|border|class=tlt-border|750x750px]]
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Enter to the router’s WebUI, go to '''Network > Interfaces''' press mouse click on the Mobile Wan interface, then drag it to the 1<sup>st</sup> position and then press '''Save & Apply'''.
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[[File:Server new 03.png|alt=Mobile WAN as Main WAN|center|thumb|504x504px|Mobile WAN as Main WAN]]
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=== Create L2TPv3 instance ===
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Under '''DHCP SERVER''' set parameters for the DHCP pool.
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Go to router’s WebUI, under '''Service > VPN > L2TP > L2TPv3''' and create new '''L2TPV3''' instance.
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[[File:Server new 02 1 fixed.png|border|class=tlt-border|750x750px]]
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===Set up Mobile WAN as Main WAN===
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Enter to the router’s WebUI, go to '''Network → Interfaces''' press mouse click on the Mobile Wan interface, then drag it to the 1<sup>st</sup> position and then press '''Save & Apply'''.
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[[File:Server new 03 fix.png|border|class=tlt-border|750x750px]]
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===Create L2TPv3 instance===
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Go to router’s WebUI, under '''Service → VPN → L2TP → L2TPv3''' and create new '''L2TPV3''' instance.
    
'''LOCAL SETTING'''
 
'''LOCAL SETTING'''
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Local address: 84.15.155.201
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Local address: 84.15.XXX.XXX
    
Tunnel ID: 100
 
Tunnel ID: 100
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'''PEER SETTING'''
 
'''PEER SETTING'''
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Peer address: 84.15.249.182
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Peer address: 84.15.XXX.XXX
    
Peer Tunnel ID: 10
 
Peer Tunnel ID: 10
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Layer 2 specific header type: Linux Default
 
Layer 2 specific header type: Linux Default
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[[File:Server new 04 01.png|alt=L2TPv3 Server settings|center|thumb|488x488px|L2TPv3 Server settings]]
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[[File:Server new 04 01 fix.png|border|class=tlt-border|750x750px]]
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[[File:Server new 04 02.png|alt=L2TPv3 Server Settings|center|thumb|480x480px|L2TPv3 Server Settings]]Specify the Local address of your mobile WAN. Local value for Tunnel ID, session ID and Cookie must match with the peer values being used at the other end.
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[[File:Server new 04 02.png|border|class=tlt-border|750x750px]]
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'''Note:''' Specify on "Local address" your mobile WAN public IP. Local value for Tunnel ID, session ID and Cookie must match with the peer values being used at the other end.
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==DHCP Client Settings (Relay) ==
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===DHCP Relay===
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Enter the router's WebUI, go to '''Network → Interface → LAN → DHCP Server''' and change the "'''Enable DHCP'''" field value from Enable to Relay and type in the DHCP Server the IP address of the server. Click '''Save & Apply'''.
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== DHCP Client Settings (Relay) ==
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[[File:Client 01 fix.png|border|class=tlt-border|750x750px]]
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=== DHCP Relay ===
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Enter the router's WebUI, go to '''Network > Interface > LAN > DHCP Server''' and change the "'''Enable DHCP'''" field value from Enable to Relay and type in the DHCP Server the IP address of the server. Click Save & Apply.
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[[File:Client 01.png|alt=Enable DHCP Relay|center|thumb|517x517px|Enable DHCP Relay]]
   
'''Note:''' The IPv4 address of the LAN interface is different from the server's LAN interface address, this is necessary to avoid conflicts.
 
'''Note:''' The IPv4 address of the LAN interface is different from the server's LAN interface address, this is necessary to avoid conflicts.
   −
=== Set up Mobile WAN as Main WAN ===
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===Set up Mobile WAN as Main WAN===
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Enter to the router’s WebUI, go to '''Network > Interfaces''' press mouse click on the Mobile Wan interface, then drag it to the 1<sup>st</sup> position and then press '''Save & Apply'''.
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Enter to the router’s WebUI, go to '''Network → Interfaces''' press mouse click on the Mobile Wan interface, then drag it to the 1<sup>st</sup> position and then press '''Save & Apply'''.
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[[File:Client 02.png|alt=Mobile WAN as Main WAN|center|thumb|545x545px|Mobile WAN as Main WAN]]
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[[File:Client 02 fix.png|border|class=tlt-border|750x750px]]
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===Modify Enable-DHCP-renew firewall rule===
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Enter in the router’s WebUI, go to '''Network → Firewall → Traffic rules''' to additionally allow destination port 67.
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=== Modify Enable-DHCP-renew firewall rule ===
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[[File:Client 03.png|border|class=tlt-border|750x750px]]
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Enter in the router’s WebUI, go to '''Network > Firewall > Traffic rules''' to additionally allow destination port 67.
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[[File:Client 03.png|alt=DHCP renew firewall rule|center|thumb|555x555px|DHCP renew firewall rule]]
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=== Create L2TPv3 instance ===
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===Create L2TPv3 instance===
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Go to router’s WebUI, under '''Service > VPN > L2TP > L2TPv3''' and create new '''L2TPV3''' instance.
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Go to router’s WebUI, under '''Service → VPN → L2TP → L2TPv3''' and create new '''L2TPV3''' instance.
    
'''LOCAL SETTING'''
 
'''LOCAL SETTING'''
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Local address: 84.15.249.182
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Local address: 84.15.XXX.XXX
    
Tunnel ID: 10
 
Tunnel ID: 10
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'''PEER SETTING'''
 
'''PEER SETTING'''
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Peer address: 84.15.155.201
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Peer address: 84.15.XXX.XXX
    
Peer Tunnel ID: 100
 
Peer Tunnel ID: 100
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Layer 2 specific header type: Linux Default
 
Layer 2 specific header type: Linux Default
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[[File:Client 04.png|alt=L2TPv3 Client instance|center|thumb|517x517px|L2TPv3 Client Settings]]
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[[File:Server new 04 02.png|alt=L2TPv3 Client Settings|center|thumb|523x523px|L2TPv3 Client Settings]]
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[[File:Client 04 fix.png|border|class=tlt-border|750x750px]]
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[[File:Server new 04 02.png|border|class=tlt-border|750x750px]]
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'''Note:''' Specify on "Local address" your mobile WAN public IP. Local value for Tunnel ID, session ID and Cookie must match with the peer values being used at the other end.
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==Testing DHCP over L2TPv3==
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To test the realy settings go to DHCP server to check that devices are able to recieve IP addresses in the range 192.168.10.150 - 192.168.10.170 either via LAN port or Wi-Fi. Access the CLI  and run '''cat /tmp/dhcp.leases''' to list all DHCP clients.
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[[File:Test 01 fix.png|border|class=tlt-border|750x750px]]
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Asking for the Address Resolution Protocol (ARP) table is also an other method to find hosts on the LAN network.
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== Testing DHCP over L2TPv3 ==
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[[File:Test 02 fix.png|border|class=tlt-border|750x750px]]
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[[Category:Use cases]]
Retrieved from "https://wiki.teltonika-networks.com/view/Special:MobileDiff/89937...109696"