DHCP/NAT to wired clients not working.

Eugene Chan2 wrote:

The RV130 functions as a DHCP server for the 4 ethernet clients, one of which is an AEBS. Reservations are handled by the RV130 as well. Then the AEBS also acts as a DHCP server for any wireless client and the wired clients connected to my AEBS acting as an extender. Reservations for all those clients are done by the first AEBS.

You have two DHCP servers in your network. Unless the IP ranges are carefully managed, this is a fragile setup.

It is an interesting setup. Let us say Mac M1 (using ethernet only, otherwise there are permutations with en0 and en1) connects to the AEBSes and gets an IP of 10.0.1.115. It goes through mDNS registration. This is in DNS now. It disconnects and "roams" to the RV and gets an IP of 10.0.1.15. The clients on 10.0.1.100-199 should be able to see it as 10.0.1.15 (not .115). ARP should get updated across the two networks. You may run into some timing issues. I am not sure how AirPlay will behave in such mobility scenarios, for example.

My AC AirPort Extreme is handing out addresses via dhcp to all my wireless clients (iPhone, iPad, Xbox one, b&w a7, hp printer, etc) but all of my wired clients are not getting an address. I have tried factory resets, configuration changes, static ips, and a litany of power cycles. This happened about a week ago and it took 15 min of everything powered off before my wired clients were able to connect again. I had the same issue with the previous AirPort Extreme N. If this is the quality of Apple's routers, then I am through pouring money into buying another.

What is the fix for this? This is the second

Do you have IPv6 enabled?

It's set to link-local

Is your AE connected directly to your ISP or is there a gateway/router between the ISP and AE?

For clarification. The AE is plugged into my surfboard cable modem directly. The AE is plugged Ito a dumb switch and there is 1 wired client directly connected. All wired clients are unable to get an IP. My previous airport express had the same issue About a year ago. So I upgraded to the new extreme. I'm not buying another Apple router after this.

Remove the dumb switch as a test. Plug in the AE into the SurfBoard and test. Are all your wired clients Macs? Are they on Yosemite or above?

II've done all of this already. And it's beyond frustrating that this is happening a week after I thought this was fixed. Let alone the second set of hardware to exhibit this behavior.

I Am running 2 xbox's, win 10 preview, 2 win 8.1 comps

Do you have a port-mirror switch which you can put between the AE and wired clients and run wireshark and monitor DHCP requests for wired clients? This will help verify if the AE actually receives any requests or not.

If AE can distribute IPs to wireless clients that it can directly see, but cannot see any wired clients due to topology differences, it is unlikely an issue with the AE.

Topology

isp->surfboard->AE->switch->2 clients

|_>Xbox

AK_Dave wrote:

Topology

isp->surfboard->AE->switch->2 clients

|_>Xbox

The Gen6 AE has known issues with Surfboard modems.. The WAN port will fail to connect properly.

What is the actual model of the surfboard.

Adding to https://discussions.apple.com/profile/LaPastenague is saying,

1. If your ISP provides an ethernet connection instead of a MoCA connection, you can remove the SurfBoard.

2. Modern OSes (W8+/Yosemite) wil indicate IP issues because they cannot connect to the Internet (for example a DNS or NTP server).

3. What is the exact model of the Motorola SurfBoard?

Ignore me.. I am just having issues seeing posts on this site again..

The items won't refresh until I add another post..