--- title: "Serial command for setting DHCP range" url: "https://maker.wiznet.io/forum/10577" markdown_url: "https://maker.wiznet.io/forum/10577/md" type: "Forum topic" category: "Wireless" author: "SomeUser" created: "2014-10-07T07:15:06+09:00" last_activity: "2017-05-04T08:34:38+09:00" language: "en" views: 1304 replies: 9 source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)" --- # Serial command for setting DHCP range ## Question Asked by SomeUser on 2014-10-07 in Wireless. Hello, I’m trying to use a serial command to set the DHCP start/end range (ie ) but it doesn’t work for me. Here is the command sequence that I have used <+++>~~<Sv1.1.28>~~<S192.168.16.11_192.168.16.50> Okay I have now set DHCP and read the setting so now I try to set it: <WH192.168.0.10_192.168.0.99><2>><S192.168.16.11_192.168.16.50> <2> means incorrect parameters, so lets try using the example code from the serial configuration guide: <WH192.168.1.10_192.168.1.100><2>><S192.168.16.11_192.168.16.50> Maybe I need leading zeros <WH192.168.001.010_192.168.001.0100><2>><S192.168.16.11_192.168.16.50>~~~~ ~~~~ ~~~~ If I change the command through the web interface I and read the results I get: <S192.168.0.11_192.168.0.50> Please help. Thankyou for your time, Paul ## Replies ### Reply 1 by kaizen, 2014-10-21 Hi I think that you have to change your device IP using command. Currently, Your Device IP might be 192.168.16.1 or 192.168.16.254. So It’s DHCP pool range can use 192.168.16.11 ~ 192.168.16.50. You can’t use 192.168.xxx.xxx ~ 192.168.xxx.xxx range excepted 192.168.16.xxx address. So I recommand that you will change your device IP using <WI192.168.0.xxx> if you want use range of IP ( 192.168.0.xxx ~ 192.168.0.xxx ) ### Reply 2 by SomeUser, 2014-12-10 Hello, Sorry for my absence but unfortunately that doesn’t seem to be the problem <S192.168.0.1> <S255.255.255.0> <S192.168.0.1> <S192.168.16.10_192.168.16.102> <WH192.168.0.10_192.168.0.100><2> You can see that my IP address is already set correctly. ### Reply 3 by SomeUser, 2014-12-10 Hello, Actually a little more information: (In case it matters this is using the DEV kit) <S192.168.0.1> <S192.168.16.10_192.168.16.102> <WH192.168.16.10_192.168.16.102> <WH192.168.16.10_192.168.16.100>~~ <WH192.168.0.2_192.168.0.3><2> <WH192.168.0.20_192.168.0.30><2> <WH192.168.16.14_192.168.16.104>~~ <WH192.168.0.14_192.168.0.104><2>~~~~ ~~~~ ~~~~ So it seems like this command only works if I am not changing the subnet. Is this a bug? Paul ### Reply 4 by ssekim, 2014-12-18 Hello Paul Please try it again as below. ` ` With these command scenario, it worked well. ### Reply 5 by SomeUser, 2014-12-18 Hello, I tried again and I’m afraid it still doesn’t work: <WT0_192.168.1.254_255.255.255.0_192.168.1.1_0.0.0.0>~~ <WI192.168.10.254>~~ <WS255.255.255.0> <WH192.168.10.101_192.168.10.200><2>~~~~ ~~~~ ~~~~ You can see that the WH command returns <2>. <Sv1.1.28> Is my version old? Paul ### Reply 6 by ssekim, 2014-12-18 Hello Please try it again as below. [code] <WT0_192.168.1.254_255.255.255.0_192.168.1.1_0.0.0.0> <WI192.168.10.254> <WS255.255.255.0> <WH192.168.10.101_192.168.10.200> [/code] ### Reply 7 by ssekim, 2014-12-18 Hello About this issue, I asked to s/w engineer of WizFi630, and he recommend . Because there can be another dhcp servers in AP-mode-network, so there are some limitation with . How about using the instead of as below? ` ` ### Reply 8 by SomeUser, 2015-01-07 Hello, I can confirm that I can set the DHCP start IP address on the LAN ports using Gateway mode. But I must use AP-MODE. I want to construct a network with multiple WizFi630 modules. Each module has 2 IP ports bridged together. One module has a static IP address and is set to DHCP mode (the router) All the other modules should be set to DHCP client mode. I must be able to control the DHCP range to my range (192.168.0.xxx). Is there anyway that I can do this through the serial interface in AP-MODE only (given that the WH command doesn’t work in AP mode). Thanks, Paul ### Reply 9 by ssekim, 2015-01-09 But, in my guess, is almost same like except WAN interface. You can just set WizFi630 as and set with dummy static IP. Then, I think that WizFi630 can run like . To implement what you want in AP mode, WizFi630-S/W needs to be modified. Thanks. --- Source: https://maker.wiznet.io/forum/10577