Hello, i want to extend my guest bridge to: 192.24.0.1/22 (1024 hosts) .. in 'Multiple DHCP Servers' options, what should i use in 'Max' option ? i tried 1024.. no work, breaks dhcp.
Thx in advance.
Joined: 16 Nov 2015 Posts: 6447 Location: UK, London, just across the river..
Posted: Fri Sep 23, 2022 8:07 Post subject:
not sure if ddwrt will support that many hosts
on the recent builds dhcp was set in 2 segments
but still 255( /24)is the max if im not wrong… _________________ Atheros
TP-Link WR740Nv1 ---DD-WRT 55630 WAP
TP-Link WR1043NDv2 -DD-WRT 55723 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 --DD-WRT 55779 Gateway/DoH,Forced DNS,AP Isolation,4VLAN,Ad-Block,Firewall,Vanilla
Netgear R7800 --DD-WRT 55819 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 55779 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Broadcom
Netgear R7000 --DD-WRT 55460 Gateway/SmartDNS/DoH,AD-Block,Firewall,Forced DNS,x3VLAN,VPN
NOT USING 5Ghz ANYWHERE
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Stubby DNS over TLS I DNSCrypt v2 by mac913
Joined: 25 Jun 2014 Posts: 142 Location: São Paulo - Brazil
Posted: Fri Sep 23, 2022 17:02 Post subject:
Sorry.. its 192.168, typo, confused with the Max hosts i wrote (5 am, without coffee)
I tried use 1022, no work Maybe the best way is doing 2 separate brigdes.
It's a DD-WRT limitation -and- a dnsmasq limitation:
DD-WRT Help wrote:
Maximum DHCP Users
Enter the maximum number of computers that you want the DHCP server to assign IP addresses to. The absolute maximum is 253, possible if 192.168.1.2 is your starting IP address.
-X, --dhcp-lease-max=<number>
Limits dnsmasq to the specified maximum number of DHCP leases. The default is 1000. This limit is to prevent DoS attacks from hosts which create thousands of leases and use lots of memory in the dnsmasq process.
Quote:
Dnsmasq is capable of handling DNS and DHCP for at least a thousand clients.
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