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DHCP for WLAN Client does not work

Captain_K

My scenario is following:

The Problem is: The WLAN Client Notebook do not get a IP from the VLAN10 DHCP service.

The Fritzbox is connected on Lan-Port 1 and VoIP is working.

If I connect the Fritzbox on Lan-Port 2-4 the VoIP does not work but the Laptop is getting an IP ?

If I setup an additional DHCP on the Fritzbox it might work but all WLAN clients will hit the UTM with the LAN-Address of the Fritzbox and

I will not be able to do WLAN Client/Service filtering :(

Setup of my UTM Interface can be seen in this POSTING



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  • 0

    Can you ping 192.168.178.1 from fritzbox?

     

    I will suggest to add another physical interface to utm, lets say eth03. Create VLANS there but no networks. In this way eth03 should act as trunk interface. 

     

    You can test it with one interface, but you have to manage UTM from External WAN interface, to not lose connectivity

  • 0 in reply to Ol Deda

    Hi oldeda,

    I can not add another Interface because its a Mainboard with only 2 NICs.
    But if you say Trunks, the UTM and even my switch is able to handle trunk but I never worked with trunks and think I can need some advisory here.

    thx, CaptainK

  • 0 in reply to Captain_K

    You write that the 192.168.178.10 is the LAN interface of the Fritzbox, but is the switch really connected to one of the LAN ports? I would guess that the VoIP stuff of the Fritzbox only works from its LAN to its WAN.

    Gruß / Regards,

    Kevin
    Sophos CE/CA (XG+UTM), Gold Partner

  • 0 in reply to kerobra_retired

    Hi kerobra,

    if you do not use the Fritzbox as a DSL-Router you have to setup a IPv4 address for it to be reachable from LAN.

    I can ping the Fritzbox address 192.168.178.10 out of the 192.168.2.0/24 network. The Fritzbox is connected to

    my HP switch. If I connect my Notebook to the HP switch instead of the Fritzbox the notebook gets an IP from the VLAN DHCP.

    Either it is a problem that the Fritzbox is not able to handle this kind of network constellation (what I can't believe) or it is a

    configuration problem on the UTM ?!

  • 0 in reply to Captain_K

    The port on the switch is configured as untagged VLANxy with no other VLANs allowed?
    The UTM seems to be configured right since the communication from your LAN to the FB seems to work and you get a correct DHCP offer on the VLAN port.

    But again: is the 192.168.178.10 the internal (LAN1-4) or the external (WAN) address of the Fritzbox?

    Gruß / Regards,

    Kevin
    Sophos CE/CA (XG+UTM), Gold Partner

  • 0 in reply to kerobra_retired

    Let me explain with words the vendor AVM use for Fritzbox ...

    The 192.168.178.10 address is the LAN address (if set to use internet-conenction is used via LAN).
    In this case the network (UTM) has to be conneted using LAN-1 port of the Fritzbox and the Fritzbox will work as a Router and is able to provide a own network-range (I think they mean DHCP of the fritzbox if used (i am not using the FB DHCP)).

    Upper setting is what I configured and this setting works for VoIP but no WLAN lcient.

    If I connect the UTM  with the Fritzbox on Port 2-4 the WLAN clients are working but VoIP doesn't.

     

    The HP Switch is on Port2 Tagged (connection to UTM) and on Port-7 untagged (connection to Fritzbox)

  • 0 in reply to Captain_K

    Solution found!

    Solution is to configure the Fritzbox as IP-Client and everything works as it should!!!

    Here you can find the manual for IP-Client configuration: How to configure the Fritzbox as IP-Client

    Thanks to everyone helping out!

    Captain_K

     

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