Hi I have a problem on the DHCP
i want to use dhcp for ether1(lan)
i use sxt lite 5 in bridge mode
when i setup dhcp server and i chose ether1 , dhcp server not work
i must select bridge1 to work .
but when i select bridge in dhcp server , its have problem for other user , meaning dhcp for for any user in wlan
i want dhcp work just for ether1 users .
thank you .
If you want dhcp server only for one interface, then you don’t want to have that interface bridged with others. Bridge works the same way as switch, it connects everything together.
so , can add two bridge , bridge1 for wlan and bridge2 for ether1 and have ping for bridges ?
when i uncheck bridge all lan ports , i cannot ping my internet gateway
i need set dhcp server for lan users only
any idea ?
any sol. about VLAN ?
There is no need to have bridges with only one interface. Use the interfaces directly without bridges.
If you want DHCP on only the LAN interface, then you need to set up the SXT as a router and not a bridge.
Bridges are transparent to TCP/IP because they simply deal with MAC addresses. Any IP addressing on the device should only be for management, or for “layer 3 switching” where the device acts as a bridge AND a router. In this case, all devices on the bridge (no matter which side they’re connected to) will be able to use the IP address of the bridge as a gateway for routing.
If you want your own private DHCP scope on the wired side of the SXT, then you need to break the bridge - remove it and put dhcp client on the wlan1 interface, put dhcp server on LAN interface, and put a MASQUERADE rule in the NAT table of the firewall so that devices behind the SXT will be able to reach the wireless side.