I assume that there is a NAT between WAN and LAN. So, you need to connect
the two LAN.

option 1: bridge over wireless:
- use the same ssid/pass for both
- bridge them using an WDS network, one being the client and the other one
the master
- unplug the wan cable at the wds client
- disable DHCP on the wds client
- be happy

option 2: bridge using the LAN
- connect a cable from a LAN port at router 1 to a LAN port at router 2
- unplug the wan cable at the wds client
- disable DHCP on the wds client
- be happy

option 3: use routers as AP (If the NAT is not desired)
- disable all DHCP on your routers
- plug the routers to the wired network using the LAN interface and not WAN.
- set IP address for both inside the wired ip range

Regards,

---
     Luiz Angelo Daros de Luca, Me.
            luizl...@gmail.com


2013/1/29 Nguyễn Hồng Quân <quanngu...@mbm.vn>

> Hello,
>
> Here is the picture for my question: http://i.imgur.com/pFwuhsZ.png
>
> Two Wifi network A & B have same IP range (192.168.2.x) but separated.
> Two routers connect to the same wired network via their WAN interface.
>
> How can I bridge these two A & B network (with OpenWrt) so that:
> - The IP is provided by one DHCP server in one router.
> - Client in network A can ping to client in network B and vice versa.
> - Can set the same ESSIS for two routers, so that user see only 1 ESSID
> in his wifi list.
>
> Is it possible to use DHCP server of wired network to provide IP for A&B
> clients?
>
> Thanks in advance.
>
> --
> Regards,
> Quân
>
> Y!IM: ng_hquan_vn
> GTalk: ng.hong.quan
>
> _______________________________________________
> openwrt-devel mailing list
> openwrt-devel@lists.openwrt.org
> https://lists.openwrt.org/mailman/listinfo/openwrt-devel
>
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