hi all,
my homenetwork is getting so big recently i believe the /24 prefix aint enough for my network anymore, rn this is my dhcp pool
this range is only serve 254 users right? i want it to server more if possible!
TY.
The DHCP server works with the two parameters:
- Start = offset from the base network address
- Limit = size of the DHCP pool
The DHCP range thus is (start -to- (start+limit-1))
On a /24 network, there are 254 usable addresses (.1 -to- .254). The 0 address is the base network address, not valid for any hosts, and .255 is the broadcast address. Often, the router itself will be on .1 or .254 (but it can really be anywhere in the range; although it must always be outside the DHCP pool).
If you need more DHCP addresses, but have 254 or fewer devices (including the router), a /24 is still fine, all you need to do is increase your pool size (and maybe lower the start position).
If you need a larger network, you can easily go to a /23 and then adjust the DHCP pool accordingly.
However, moving to larger networks also means that your network efficiency will go down due to the increased 'chattiness' of all of those devices. Like people at a gathering, the noise level goes up much faster than a linear rate as you add more participants. If you have a very large number of devices, you should consider separating them into different subnets so that they have smaller broadcast domains and thus better performance. You can always allow routing between those subnets.
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you will first have to change the netmask of the network here is an example, then you can define a larger "dhcp pool" ...
or
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i noted all that,
but lets suppose i want to increase the network this is all i have to do ?
if there are other settings i need to do inform me
increase the limit value in the dhcp tab...
ps: if you don't have a network with ip address 192.168.0.x I would change your ip address from 192.168.1.1 to 192.168.0.1
the start and the limit you mean? it still on 100 and 150
im sorry im still noob in dhcp stuff
yeh i dont have any network named 192.168.0.x
start = 100
limit = 300
gw 192.168.0.1/23
first client 192.168.0.100
end client 192.168.1.145
or
start = 100
limit = 400
gw 192.168.0.1/23
first client 192.168.0.100
last client 192.168.1.245
ps: I recommended setting the IP address to 192.168.0.1 so that it is at the beginning of the network:
Network: 192.168.0.0/23
HostMin: 192.168.0.1
HostMax: 192.168.1.254
Hosts/Net: 510 (Private Internet)
ps: I also remind you of this to evaluate:
just to make you understand:
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how to do so?
making vlans right?
Yes, VLANs/multiple subnets.
How many devices are in your network?
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Didnt count, alot i believe im sharing my internet using litebeam ubiquiti, rn i guess im almost reaching the limit 6 houses using it
Ok... wow, that's a bit of a different animal.
What is the situation with these 6 houses? Are they 6 different families, or is this one large family split across 6 homes?
The purpose of the question is: do all the houses need to be on the same network to share resources? Or should they each be on their own private network that cannot be reached by the other homes? Or some combination (such as -- making this up -- houses 1, 3 need to be on the same network; 2, 4, 5 should each be on their own; 6 should have access to all of them).
Nominally, I would suggest that you consider setting it up such that each house has its own subnet. If they need to share resources, that could be done by inter-subnet routing. But there could be reasons to have multiple houses sharing a single subnet. It really comes down to how these houses are related to each other in terms of the network sharing expectations.
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3 families in one house with 3 floors, the other 3 is randomly alocated,
Current setup is messy a bit. Some houses running their own router some running an access point which recently cuzed me ip conflict i believe.
My plan is to force them switching operating mode to access point and make my banana r4 take all the job since it has a very good hardware 1.8ghz and 4g ddr4 then i want to seperate my network into 2
First lan port will be having a switch network 192.168.1.1
Second port will be configured as 192.168.2.1
If you think this will be good solution inform me, if not enlighten me and THANKS!
Unless there is a reason for the different families/apartments/houses to be on the same subnet, I would recommend that you assign each "unit" its own subnet. Not knowing exactly how you have things setup, you could say unit 1 to unit n, and assign each one like this:
- unit 1: 172.19.1.0/24
- unit 2: 172.19.2.0/24
- ...
- unit n: 172.19.n.0/24
A unit can be defined however you want. It sounds like this is a rental type scenario, and if that's the case, you might provide each leased space with its own /24 subnet.
Put all of these individual networks into a single firewall zone that does not allow input or forwarding (reject for both) but does allow output. Create two rules for that zone to accept DNS and DHCP.
Finally, setup another network to use as the management network that specifically handles all the infrastructure (i.e. APs, switches) so that those key devices are secured from the other subnets.
The IP addresses I used above are just examples, but they are probably uncommon enough RFC1918 addresses that you won't likely experience a conflict should any of your users setup their own router.
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My DHCP pool settings are:
Start: 26
Limit: 229
which means DHCP leases are given between 192.168.1.26 and 192.168.1.254.
All my servers and special devices gets their static DHCP from 192.168.1.2 - 192.168.1.25.
This way I know if the IP is between 2 and 25 it is a static address.
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One consideration is that OP is service all of these locations with a single AP - so maybe drop the VLAN subnets down a bit for sizing/capacity purposes... cast too wide of a possible net and the WLAN could collapse due to overhead...
a /28 gives 14 addresses per VLAN, and that's counting the broadcast address for that segment.
ipcalc 172.19.1.0/28
Address: 172.19.1.0 10101100.00010011.00000001.0000 0000
Netmask: 255.255.255.240 = 28 11111111.11111111.11111111.1111 0000
Wildcard: 0.0.0.15 00000000.00000000.00000000.0000 1111
=>
Network: 172.19.1.0/28 10101100.00010011.00000001.0000 0000
HostMin: 172.19.1.1 10101100.00010011.00000001.0000 0001
HostMax: 172.19.1.14 10101100.00010011.00000001.0000 1110
Broadcast: 172.19.1.15 10101100.00010011.00000001.0000 1111
Hosts/Net: 14 Class B, Private Internet
The OP has stated that they are out of addresses in the current DHCP scope. So limiting them will not help the overall problem.
The use of VLANs will not overload the AP(s), the total client count obviously could.
While I cannot say for certain, it seems rather likely that the OP has wired + wifi infrastructure (more than one AP) because we're talking about a set of 6 houses. It's unlikely a single AP is servicing the whole network.
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Yeah - and there's also capacity of the root gateway - dimensions there have impact to all clients - there's that to consider as well as trying to limit the broadcast domains.
OP didn't mention what the GW hardware was - I know the SW can handle it well enough, but the hardware has to be there to do it.
i really appreciate your time, i have a little confusion cuz im noo, in " unit " you mentioned earlier, you mean i segment my network using DSA? assigning each port with
- unit 1: 172.19.1.0/24
- unit 2: 172.19.2.0/24
- ...
- unit n: 172.19.n.0/24
Right?
if so i will be needing switch for everyport no?
is this how things work? but i believe i may need more than that. but noted
im having my banana r4 working as router and modem(combo) and it handles all this perfectly except the ip conflicting and lack of ips