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  1. #1

    VLAN 3 devices will not DHCP

    Model :

    Hardware Version :

    Firmware Version :

    ISP : [/COLOR]

    [h=2]VLAN 3 devices will not DHCP[/h]
    Region : Argentina

    Model : SG2424

    Hardware Version : V1

    Firmware Version :

    ISP :


    I have a SG2424P connected to a Cisco RVS4000 router. I have my VLANs defined in the router and the port that connects to the switch set as a TRUNK. I have VLAN 3 set as my voice VLAN. I connected a phone and it is properly recognized and placed in VLAN3. However, it will not get an IP. All other devices are assigned to VLAN 1 and get IPs from the router. Why aren't devices in VLAN3 getting IPs? Seems they can't reach the DHCP server.

  2. #2
    Quote Originally Posted by betthethao View Post
    I have a SG2424P connected to a Cisco RVS4000 router. I have my VLANs defined in the router and the port that connects to the switch set as a TRUNK. I have VLAN 3 set as my voice VLAN. I connected a phone and it is properly recognized and placed in VLAN3. However, it will not get an IP. All other devices are assigned to VLAN 1 and get IPs from the router. Why aren't devices in VLAN3 getting IPs? Seems they can't reach the DHCP server.





    Due to RVS4000 do not support general mode(cisco device only supports access and trunk mode). so maybe you need configure like this:
    RVS4000(port1)-----(port3)TL-SG2424(port1)----ip phone
    Port1 in RVS4000, trunk mode, belongs to vlan1 and vlan3
    Port 3 in TL-SG2424,trunk mode, belongs to vlan1 and vlan3
    Port1 in TL-SG2424,general mode, belongs to vlan1 and vlan3, vlan1 is untag, vlan3 is tagged, pvid=1
    PS: I think the voice message be sent from IP Phone is tagged, is it right?


 

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