# No ping behind second AccessPoint **URL:** \ **Category:** Installing and Using OpenWrt\ **Created:** [September 20, 2022, 12:43pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558 "2022-09-20T12:43:19Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![HTMofDreams](https://forum.openwrt.org/user_avatar/forum.openwrt.org/htmofdreams/32/55630_2.png) [@HTMofDreams](https://forum.openwrt.org/u/HTMofDreams)\ **Post date:** [September 20, 2022, 12:43pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/1 "2022-09-20T12:43:19Z")
I have a main router 192.168.10.0. There are connected some clients.I have a second wlan router in relay-mode. The second router becomes an dhcp ip ( 192.168.10.10 ), from my main router. The clients behind the second router becomes an ip from my main router of the same subnet e.g. 192.168.10.3. The clients behind my main router, becomes of couse a dhcp ip from the same subnet, too e.g. 192.168.10.2. I can ping from 192.168.10.3 to 192.168.10.2 without problems but I cant ping from 192.168.10.2 to 192.168.10.3. Anybody knows, why I cant ping from 192.168.10.2 to 192.168.10.3? ---
**Author:** ![psherman](https://forum.openwrt.org/letter_avatar/psherman/32/5_5575768a8748004e209b776fc1b2916d.png) [@psherman](https://forum.openwrt.org/u/psherman)\ **Post date:** [September 20, 2022, 4:47pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/2 "2022-09-20T16:47:55Z")
Sounds like you want a [dumb AP](https://openwrt.org/docs/guide-user/network/wifi/dumbap) configuration. For this, your routers will be connected LAN \<-\> LAN and your second router will simply be a wired-to-wifi bridge. ---
**Author:** ![lleachii](https://forum.openwrt.org/letter_avatar/lleachii/32/5_5575768a8748004e209b776fc1b2916d.png) [@lleachii](https://forum.openwrt.org/u/lleachii)\ **Post date:** [September 20, 2022, 6:07pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/3 "2022-09-20T18:07:12Z")
> [@HTMofDreams](#): > > 192.168.10.0 BTW, if your CIDR range is /24 (subnet mask 255.255.255.0), the IP .0 will be invalid for a host. ---
**Author:** ![HTMofDreams](https://forum.openwrt.org/user_avatar/forum.openwrt.org/htmofdreams/32/55630_2.png) [@HTMofDreams](https://forum.openwrt.org/u/HTMofDreams)\ **Post date:** [September 20, 2022, 6:53pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/4 "2022-09-20T18:53:27Z")
> [@psherman](#): > > Sounds like you want a [dumb AP](https://openwrt.org/docs/guide-user/network/wifi/dumbap) configuration. For this, your routers will be connected LAN \<-\> LAN and your second router will simply be a wired-to-wifi bridge. No, I want an wifi-to-wifi-bridge. Is that possible? Now, Iam using WDS. But on WDS I have to set the second wlan router to a fix ip, of my network. But I works ... ---
**Author:** ![psherman](https://forum.openwrt.org/letter_avatar/psherman/32/5_5575768a8748004e209b776fc1b2916d.png) [@psherman](https://forum.openwrt.org/u/psherman)\ **Post date:** [September 20, 2022, 6:59pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/5 "2022-09-20T18:59:28Z")
There are 3 ways to make a wifi-to-wifi bridge 1. [WDS](https://openwrt.org/docs/guide-user/network/wifi/atheroswds) -- easiest, may have some difficulties if you are running vendor/other firmware on the primary router/AP (some vendor implementations have quirks or aren't quite to spec). There is a performance penalty of 50%. 2. [Relayd](https://openwrt.org/docs/guide-user/network/wifi/relay_configuration) - this is fairly complex and has a bunch of potential issues such as DHCP requests failing. If WDS is supported, don't use relayd. 3. [Mesh](https://openwrt.org/docs/guide-user/network/wifi/mesh/start) this is often a higher performance option, but often requires that your devices are both running the same firmware or at least both have compatible implementations. This also requires multi-radio routers/APs as one of the radios is used purely for backhaul. Again, this is more complex than WDS, but if your hardware supports it, it can be a good option. ---
**Author:** ![HTMofDreams](https://forum.openwrt.org/user_avatar/forum.openwrt.org/htmofdreams/32/55630_2.png) [@HTMofDreams](https://forum.openwrt.org/u/HTMofDreams)\ **Post date:** [September 20, 2022, 7:01pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/6 "2022-09-20T19:01:22Z")
> [@psherman](#): > > [Mesh](https://openwrt.org/docs/guide-user/network/wifi/mesh/start) this is often a higher performance option, but often requires that your devices are both running the same firmware or at least both have compatible implementations. This also requires multi-radio routers/APs as one of the radios is used purely for backhaul. Again, this is more complex than WDS, but if your hardware supports it, it can be a good option. On both routers the OS is openWRT 21. But the second router have low memory ( 8MB ). ---
**Author:** ![psherman](https://forum.openwrt.org/letter_avatar/psherman/32/5_5575768a8748004e209b776fc1b2916d.png) [@psherman](https://forum.openwrt.org/u/psherman)\ **Post date:** [September 20, 2022, 7:02pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/7 "2022-09-20T19:02:02Z")
I don't know how much memory the mesh related packages require, but do both devices have multiple radios? ---
**Author:** ![HTMofDreams](https://forum.openwrt.org/user_avatar/forum.openwrt.org/htmofdreams/32/55630_2.png) [@HTMofDreams](https://forum.openwrt.org/u/HTMofDreams)\ **Post date:** [September 20, 2022, 7:04pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/8 "2022-09-20T19:04:33Z")
```nohighlight root@OpenWrt:~# iw list | grep "Supported interface modes" -A 9 Supported interface modes: * IBSS * managed * AP * AP/VLAN * monitor * mesh point * P2P-client * P2P-GO * outside context of a BSS root@OpenWrt:~# ``` ---
**Author:** ![mattimat](https://forum.openwrt.org/user_avatar/forum.openwrt.org/mattimat/32/50812_2.png) [@mattimat](https://forum.openwrt.org/u/mattimat)\ **Post date:** [September 20, 2022, 8:49pm UTC](https://forum.openwrt.org/t/no-ping-behind-second-accesspoint/137558/9 "2022-09-20T20:49:33Z")
I'm running 802.11s mesh and multipe accesspoints (SSID) in one radio in multiple openwrt routers.