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Release dhcp lease after forcing client to disconnect

How many simualtaneous users can WRT54G handle?Could my wireless router randomly reboot if it has a too big antenna?Mystery WIFI connection interruptionLaptop using DHCP lease from another networkCleanup DHCPD leases as well as DDNS EntriesSeamless wireless AP network through wired routersMulticast at high speed over Wifi/AP? higher speed?Distributed DHCP probabilitiesClear DHCP lease on disconnect

2

I configured a wifi access point based on OpenWRT to limit the number of clients to 4 at the same time. For that purpose I gave a limited number (4) IP addresses leaseable by DHCP. After a period of time (say one hour), I want to force clients to be disconnected and I change the password for wifi credential but I want to be sure that the leases are renewed for new clients and are not still active for the 4 previous mac addresses.

My first question is how to clear the existing leases to enable new client connections in my case? I suppose that deleting the dhcpd.leases file removes the information, but that file is not a kind of config file on which leases are granted or not.

Thanks.

wifi access-point openwrt dhcpd

share|improve this question

edited Jun 21 '15 at 7:45

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asked Jun 20 '15 at 21:36

AtoM_84AtoM_84

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bumped to the homepage by Community♦ 16 mins ago

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add a comment | 

2

I configured a wifi access point based on OpenWRT to limit the number of clients to 4 at the same time. For that purpose I gave a limited number (4) IP addresses leaseable by DHCP. After a period of time (say one hour), I want to force clients to be disconnected and I change the password for wifi credential but I want to be sure that the leases are renewed for new clients and are not still active for the 4 previous mac addresses.

My first question is how to clear the existing leases to enable new client connections in my case? I suppose that deleting the dhcpd.leases file removes the information, but that file is not a kind of config file on which leases are granted or not.

Thanks.

wifi access-point openwrt dhcpd

share|improve this question

edited Jun 21 '15 at 7:45

chicks

3,04272033

asked Jun 20 '15 at 21:36

AtoM_84AtoM_84

114

bumped to the homepage by Community♦ 16 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

add a comment | 

I configured a wifi access point based on OpenWRT to limit the number of clients to 4 at the same time. For that purpose I gave a limited number (4) IP addresses leaseable by DHCP. After a period of time (say one hour), I want to force clients to be disconnected and I change the password for wifi credential but I want to be sure that the leases are renewed for new clients and are not still active for the 4 previous mac addresses.

My first question is how to clear the existing leases to enable new client connections in my case? I suppose that deleting the dhcpd.leases file removes the information, but that file is not a kind of config file on which leases are granted or not.

Thanks.

wifi access-point openwrt dhcpd

share|improve this question

edited Jun 21 '15 at 7:45

chicks

3,04272033

asked Jun 20 '15 at 21:36

AtoM_84AtoM_84

114

share|improve this question

edited Jun 21 '15 at 7:45

chicks

3,04272033

asked Jun 20 '15 at 21:36

AtoM_84AtoM_84

114

share|improve this question

edited Jun 21 '15 at 7:45

chicks

3,04272033

asked Jun 20 '15 at 21:36

AtoM_84AtoM_84

114

edited Jun 21 '15 at 7:45

chicks

3,04272033

edited Jun 21 '15 at 7:45

chicks

3,04272033

asked Jun 20 '15 at 21:36

AtoM_84AtoM_84

114

asked Jun 20 '15 at 21:36

AtoM_84AtoM_84

114

2 Answers
2

active

oldest

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0

It may be possible to use the OMAPI Command Shell (omshell) to modify the end time of the current lease as described in this thread.

(If this works then if you can provide the whole omshell script then we can flesh out this answer.)

share|improve this answer

answered Jun 21 '15 at 20:27

Terry BurtonTerry Burton

1458

add a comment | 

0

doesn't restarting dnsmasq flush the leases?

If you're changing the wifi password anyway, just change that password and reboot the unit.

share|improve this answer

answered Aug 28 '15 at 23:57

user2066657user2066657

270110

add a comment | 

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0

It may be possible to use the OMAPI Command Shell (omshell) to modify the end time of the current lease as described in this thread.

(If this works then if you can provide the whole omshell script then we can flesh out this answer.)

share|improve this answer

answered Jun 21 '15 at 20:27

Terry BurtonTerry Burton

1458

add a comment | 

0

It may be possible to use the OMAPI Command Shell (omshell) to modify the end time of the current lease as described in this thread.

(If this works then if you can provide the whole omshell script then we can flesh out this answer.)

share|improve this answer

answered Jun 21 '15 at 20:27

Terry BurtonTerry Burton

1458

add a comment | 

It may be possible to use the OMAPI Command Shell (omshell) to modify the end time of the current lease as described in this thread.

(If this works then if you can provide the whole omshell script then we can flesh out this answer.)

share|improve this answer

answered Jun 21 '15 at 20:27

Terry BurtonTerry Burton

1458

share|improve this answer

answered Jun 21 '15 at 20:27

Terry BurtonTerry Burton

1458

answered Jun 21 '15 at 20:27

Terry BurtonTerry Burton

1458

answered Jun 21 '15 at 20:27

Terry BurtonTerry Burton

1458

0

doesn't restarting dnsmasq flush the leases?

If you're changing the wifi password anyway, just change that password and reboot the unit.

share|improve this answer

answered Aug 28 '15 at 23:57

user2066657user2066657

270110

add a comment | 

0

doesn't restarting dnsmasq flush the leases?

If you're changing the wifi password anyway, just change that password and reboot the unit.

share|improve this answer

answered Aug 28 '15 at 23:57

user2066657user2066657

270110

add a comment | 

doesn't restarting dnsmasq flush the leases?

If you're changing the wifi password anyway, just change that password and reboot the unit.

share|improve this answer

answered Aug 28 '15 at 23:57

user2066657user2066657

270110

share|improve this answer

answered Aug 28 '15 at 23:57

user2066657user2066657

270110

answered Aug 28 '15 at 23:57

user2066657user2066657

270110

answered Aug 28 '15 at 23:57

user2066657user2066657

270110