Hi,
First post, first MikroTik … just got an 2011UiAS-2HnD … first (of probably many) questions.
I have a small LAN with a DHCP server (ISC DHCPD as part of a pfSense firewall), and I would like it to continue to be the single DHCP server in the network. I’ve connected eth1 of the MikroTik to the LAN and it gets assigned 10.39.6.14/24. I’ve configured wlan1 and I can connect to the AP. When I disable the internal DHCP server and configure the DHCP relay, wireless clients don’t get an address. It seems there is no response from the DHCP server. Look:
jg3-m1:~ jg3$ tshark -i en0 -n -f "port 68 or port 69"
Capturing on 'Wi-Fi'
1 0.000000 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Request - Transaction ID 0x2d373a9f
2 0.004738 10.39.6.254 -> 10.39.6.39 DHCP 342 DHCP ACK - Transaction ID 0x2d373a9f
3 13.740166 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Request - Transaction ID 0x2d373aa0
4 14.819332 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Request - Transaction ID 0x2d373aa0
5 16.896168 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Request - Transaction ID 0x2d373aa0
6 21.664519 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Discover - Transaction ID 0x2d373aa1
7 22.805687 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Discover - Transaction ID 0x2d373aa1
8 25.198678 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Discover - Transaction ID 0x2d373aa1
9 29.941874 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Discover - Transaction ID 0x2d373aa1
10 38.571790 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Discover - Transaction ID 0x2d373aa1
11 47.140175 0.0.0.0 -> 255.255.255.255 DHCP 342 DHCP Discover - Transaction ID 0x2d373aa1
On lines 1-2 I refresh my existing lease on my existing wireless network. Then I switch to the MikroTik AP, and the DHCP process begins anew but no responses come back.
Is there somthing I’m missing as to how the DHCP relay needs to be configured? I’ve used DHCP relays in networks before, but it has been a few years.
Thanks,
–jg3