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Forum Discussion
SRX5308 and DHCP relay
HI,
I have a SRX5308 and I would like to configure LAN1 with subnet 192.168.4.1/24(less 192.168.4.1 to 192.168.4.10) and LAN2 with 192.168.5.1/24. The DHCP is a Windows Server 2012 and it is connected in a VLAN 1 with 192.168.4.2. I have created two scope 192.168.4.1/24 and 192.168.5.1/24.
My question is how configure the SRX5308 for the LAN2 with DHCP relay? I would like my Window server give an IP in a good subnet :
- Thank's
3 Replies
- First - I'm not certain I understand your question, and second - I don't have an SRX5308, but it should be similar to the way my FVS318N works. I'm going to assume that your concern is centered on how the DHCP server knows which DHCP scope to use on a given request - this is not really a Netgear issue, it's more of a "how DHCP works" type deal. I assume you're running VLANs and you mean VLAN1 & VLAN2 rather than LAN1 & LAN2 - just set the appropriate VLAN addresses on the VLANs and then enable DHCP relay in the DHCP setup for VLAN2 and point it to the address of the DHCP server. The Windows DHCP server can tell where the DHCPDiscover request comes from - if it is received directly on the server's NIC at 192.168.4.2, it will make a DHCPOffer from the 192.168.4.0/24 pool, however if the DHCPDiscover request is relayed from 192.168.5.1, it will respond with an offer from the 192.168.5.0/24 pool. It's kind of a puzzling thing when you first think about it, but it actually is very simple to configure - try it and see.
AlexMILL one think to be aware you when you specify each DHCP setting make sure you enable your VLAN1 and VLAN2 on LAN ports you plan to use and then at the bottom of the DHCP leases list there are four boxes to setup Default DHCP scope for each port. Again select VLAN1 as default for LAN1 and VLAN2 as default for LAN2. It will transfer all traffic through VLANs you created not through defualt traffic and whatever there is VLAN aware through specific VLAN.
Hi AlexMILL,
Welcome to the community! You can assign and manage VLAN profiles along with VLAN DHCP options on Network Configuration>LAN Settings>LAN Setup. Please see image below for reference:
You can find the description of each options on this link, please check pages 86 to 88.
Hope this helps! I'll look forward to your response.
Thanks,
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