snagrat Posted June 14, 2016 Posted June 14, 2016 So I have my VLAN setup and I am able to ping from one to the other, however DHCP relay is not working. The DHCP server is on its own VLAN, and the Scopes are created within DHCP to match the ranges of the VLAN. Currently no VLANS get an IP. What type of port should the DHCP server be plugged into? Currently it is on an access port specific to its own VLAN. I have enabled DHCP relay on the switch. I assume it is only the single Layer 3 switch it needs enabling on? Switch is a Dlink DGS-3620.
FN-GM Posted June 14, 2016 Posted June 14, 2016 (edited) The DHCP server is fine in that port. It is only required the L3 Switch. (the configuration) Point 5 & 6 will be what you need in this document - http://www.dlink.com/-/media/Business_Products/DGS/DGS%203324SR/Additional_Downloads/DGS3324SR_Layer_3_network_with_DHCP_BOOTP_relay_example_EN_UK.pdf Have you authorised the DHCP server? (something done on the DHCP itself) Edited June 14, 2016 by FN-GM
snagrat Posted June 14, 2016 Author Posted June 14, 2016 No there are other switches, and the DHCP server is plugged into a layer 2 switch. All my test devices are plugged into the layer 3 switch. Like i said, I am able to ping across the switches OK though?
FN-GM Posted June 14, 2016 Posted June 14, 2016 No there are other switches Whats that in response to? and the DHCP server is plugged into a layer 2 switch Thats fine
snagrat Posted June 14, 2016 Author Posted June 14, 2016 Sorry no idea what that was in response to ..... completely misread what you wrote. DHCP is authorised, and firewall completely off. I've looked at that document and generally I've done all of that except the commands aren't available for this switch. So I've run "enable dhcp_relay" as per this CLI http://ftp.dlink.ru/pub/Switch/DGS-3620%20Series/Description/xStack_DGS-3620_Series_CLI%20Reference%20Guide_v2.00(W).pdf
snagrat Posted June 14, 2016 Author Posted June 14, 2016 I don't have to do anything with Option 60 do I?
snagrat Posted June 14, 2016 Author Posted June 14, 2016 It seems to be working now on one VLAN even though they are all the same. Would it matter than I have another DHCP server on the network, even though it is not on any of the configured VLANs?
snagrat Posted June 14, 2016 Author Posted June 14, 2016 Got it working on the 2nd VLAN but still one not working.
snagrat Posted June 14, 2016 Author Posted June 14, 2016 I didn't have the VLAN setup on the other switch. From everything I can see now all appears to be the same for all VLANs so not sure why this last one isn't working.
snagrat Posted June 14, 2016 Author Posted June 14, 2016 Ahhh my routing table is wrong....let me correct that and see what happens
snagrat Posted June 14, 2016 Author Posted June 14, 2016 Nope that didn't work. Here is my config if something looks out of place: IP Interface : test1 VLAN Name : EventWifi101 Interface Admin State : Enabled IPv4 Address : 10.55.210.254/24 (Manual) Primary Proxy ARP : Disabled (Local : Disabled) IP Directed Broadcast : Disabled IPv4 State : Enabled IPv6 SLAAC state : Disabled (Default Router: Disabled) DHCPv6 Client State : Disabled (Rapid commit : Disabled) DHCPv6 Client PD State : Disabled (Rapid commit : Disabled) IPv6 State : Enabled IP MTU : 1500 IP Interface : System VLAN Name : default Interface Admin State : Enabled IPv4 Address : 10.130.240.120/22 (Manual) Primary Proxy ARP : Disabled (Local : Disabled) IP Directed Broadcast : Disabled IPv4 State : Enabled IPv6 SLAAC state : Disabled (Default Router: Disabled) DHCPv6 Client State : Disabled (Rapid commit : Disabled) DHCPv6 Client PD State : Disabled (Rapid commit : Disabled) IPv6 State : Enabled IP MTU : 1500 DHCP Option12 State : Disabled DHCP Option12 Host Name : IP Interface : DHCPServer VLAN Name : DHCPServer Interface Admin State : Enabled IPv4 Address : 10.55.211.253/25 (Manual) Primary Proxy ARP : Disabled (Local : Disabled) IP Directed Broadcast : Disabled IPv4 State : Enabled IPv6 SLAAC state : Disabled (Default Router: Disabled) DHCPv6 Client State : Disabled (Rapid commit : Disabled) DHCPv6 Client PD State : Disabled (Rapid commit : Disabled) IPv6 State : Enabled IP MTU : 1500 IP Interface : CafeWifi300 VLAN Name : CafeWifi300 Interface Admin State : Enabled IPv4 Address : 10.55.211.126/25 (Manual) Primary Proxy ARP : Disabled (Local : Disabled) IP Directed Broadcast : Disabled IPv4 State : Enabled IPv6 SLAAC state : Disabled (Default Router: Disabled) DHCPv6 Client State : Disabled (Rapid commit : Disabled) DHCPv6 Client PD State : Disabled (Rapid commit : Disabled) IPv6 State : Enabled IP MTU : 1500 VID : 101 VLAN Name : EventWifi101 VLAN Type : Static Advertisement : Enabled Member Ports : 4 Static Ports : 4 Current Tagged Ports : Current Untagged Ports: 4 Static Tagged Ports : Static Untagged Ports : 4 Forbidden Ports : VID : 200 VLAN Name : DHCPServer VLAN Type : Static Advertisement : Enabled Member Ports : 1,5 Static Ports : 1,5 Current Tagged Ports : Current Untagged Ports: 1,5 Static Tagged Ports : Static Untagged Ports : 1,5 Forbidden Ports : VID : 300 VLAN Name : CafeWifi300 VLAN Type : Static Advertisement : Enabled Member Ports : 3,6 Static Ports : 3,6 Current Tagged Ports : Current Untagged Ports: 3,6 Static Tagged Ports : Static Untagged Ports : 3,6 Forbidden Ports : Command: show dhcp_relay DHCP/BOOTP Relay Status : Enabled DHCP/BOOTP Hops Count Limit : 4 DHCP/BOOTP Relay Time Threshold : 0 DHCP Vendor Class Identifier Option 60 State: Disabled DHCP Client Identifier Option 61 State: Disabled DHCP Relay Agent Information Option 82 State : Disabled DHCP Relay Agent Information Option 82 Check : Disabled DHCP Relay Agent Information Option 82 Policy : Replace DHCP Relay Agent Information Option 82 Remote ID : default DHCP Relay Agent Information Option 82 Circuit ID : default Interface Server 1 Server 2 Server 3 Server 4 ------------ --------------- --------------- --------------- --------------- test1 10.55.211.250 CafeWifi300 10.55.211.250 If I'm plugged in on port 4 on switch I get IP 10.55.210.10. On port 5 I get IP 10.55.211.150 But on port 3 I get nothing, where I should be getting 10.55.211.10
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