News
:
This forum is now permanently frozen.
m0n0wall Forum
>
m0n0wall Support (English)
>
Firewall/NAT
Topic: Multiple Lan with different ip/subnet
Pages: [
1
]
Topic: Multiple Lan with different ip/subnet (Read 1287 times)
Multiple Lan with different ip/subnet
« on: April 06, 2014, 21:01:40 »
g10
Posts: 4
( Modem) 192.168.1.254
|
Netgear VPN Router - 192.168.7.0
|
-----------------------------------------------------
private ip (wan) | (ue0) |
Monowall (strictly for guests) company workstations
|
--------------------------------------
| |
em0 (LAN) (private LAN) ue1 (opt1) (private LAN)
192.168.2.* 192.168.3.*
with dhcp with dhcp
laptop1 laptop2
my goal is to have more than 250 dhcp leases.
If I Bridge opt1 with lan1 everything works. but i'm limited to 248 leases.
so my setup is with the diagram above, I cant get laptop2 connected to the internet, no pings, but I do get dhcp ip addresses and I can ping 192.168.7.1 and 192.168.1.254
is something wrong in adv outbound, proxy arp, or firewall rules ? thanks
or do I need to take something out/ add?
System: Static routes
Interface Network Gateway Description
LAN 192.168.1.0/24 192.168.1.254 edit route
LAN 192.168.7.0/24 192.168.7.1
Services: Proxy ARP
Interface Network Description
WAN 192.168.1.0/24 edit network
OPT1 192.168.3.0/0 edit network
WAN 192.168.7.0/24
Firewall: Rules
OPT1
Proto Source Port Destination Port Description
* OPT1 net * * * opt source
* * * * * opt any
Firewall: Rules
LAN
Proto Source Port Destination Port Description
* LAN net * * * Default LAN -> any
Firewall: Rules
WAN
Proto Source Port Destination Port Description
* * * * *
TCP/udp * * WAN address * (wan dest)
Firewall: NAT: Outbound
Interface Source Destination Target Description
WAN 192.168.2.0/24 * *
OPT1 192.168.3.0/24 * 192.168.2.1
WAN 192.168.3.0/24 * 192.168.2.1
or if I can perform lan bridging with different subnets or additional ips.
Re: Multiple Lan with different ip/subnet
« Reply #1 on: April 06, 2014, 21:29:42 »
Fred Grayson
Posts: 994
I am not sure I understand the reason to add an OPT1 interface.
If the reason is that you want a larger network (more than the 253 usable IP addresses in a /24 network) then why not just make the LAN network larger, say /23, /22, /21 etc.?
--
Google is your friend and Bob's your uncle.
Re: Multiple Lan with different ip/subnet
« Reply #2 on: April 07, 2014, 04:19:38 »
g10
Posts: 4
wow, I learned something new, didn't know I could do that just by changing the net mask bit.
But the reason I was trying to separate these subnets out, is because, eventually I will have 5 access points with captive portal ( each connected via opt1, opt2, opt3, opt4, opt5 ). But first I am just trying to bridge 2 lans (lan and opt1) first just to get it to work. I would like to set it so that each access point can't access any other access points' connections or devices. If you have any better ideas, I'm open to suggestions, I may be going at this wrong.
thanks
Re: Multiple Lan with different ip/subnet
« Reply #3 on: April 07, 2014, 04:45:46 »
Fred Grayson
Posts: 994
The primary reason to add interfaces is to have separate networks that can not access each other, or in access each other in limited ways.
But you didn't mention this at first, you just said you needed more IP addresses. So that's why I suggested one larger network by relaxing the subnet bit.
But back to separate networks. Add interfaces, defining a unique network for each. Then all you need to add firewall rules for each interface. First add rules to block access to the other networks, one rule for each. The finally add a rule to allow traffic to any destination - this being the only remaining unblocked network - the internet. This last rule must be last in the list, below all the blocking rules.
--
Google is your friend and Bob's your uncle.
Re: Multiple Lan with different ip/subnet
« Reply #4 on: April 10, 2014, 04:50:38 »
Lee Sharp
Posts: 517
If you are bridging, you essentially have one network, so not a real point. If you are routing it makes sense...
And if you want a larger subnet, you also may want to use 172.16.x.x addresses. Some equipment and devices have problems with supernetting.
Pages: [
1
]