New here - Looking for ability to do whitelist blocking based on remote IP+destination IP and Port
Hi,
I am new here and hopefully this is the correct place to post this... If not please point me to the correct place :)!
I work mostly remotely, and I have a small development environment here, but I also work with several other team members (who are also remote), and occasionally, I need to give them some limited access to some of the machines in my dev environment, e.g., for testing or working sessions.
The networking environment I have consists of a main router that connects to the ISP, and then I have a mesh network and the dev machines are hard wired on the mesh network, and while I was checking the logs in the mesh network, I am seeing occasional connections from outside IP addresses to ports on one of my dev machines, which is hosting a web server.
Unfortunately, neither the ISP (Verizon) router nor the mesh network are able to prevent those connections, so I have tried to block the connections on that web server machine, which is a Windows machine (so using Windows Defender firewall), but I'd really like to incorporate something to my environent that would me allow me to control the access, and I was chatting with one of my colleagues and he suggested that maybe an Omada router might be able to do what I am looking for?
Basically, what I think I need is "some network device" that can do whitelists blocking, based on the remote IP and the destination IP and port.
I am thinking that I could add that device between the ISP router and the mesh network, and then I could configure the blocking rules/whitelists that I need on that device.
I am posting here to inquire if this is something that can be done with any Omada device, and if so can you all recomment which device?
Thanks,
Jim
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Hi @ohaya1001
Thanks for posting in our business forum.
ohaya1001 wrote
Thanks for responding. Can you clarify? Would the Omada router be able to block incoming connections based on remote IP, and target IP and port?
FYI, my son, who works in networking (but not with Omada equipment) suggested:
https://www.amazon.com/dp/B0DDRC1T34
https://www.amazon.com/dp/B07GX6GVB6
Would that be able to block all incoming connections, other than the whitelisted one?
Thanks,
Jim
It is not perfect yet to specify the IP and Port like the Openwrt which you have many options and ways to achieve what you described.
It now has a limitation in Controller mode where you cannot specify the IP-Port Group in the directions.
For other aspects, see this:
ACL Guide Compilation
What worries me is that it might not be what you are after. So to avoid that, you can see the common implementation of this router.
Emulator of the controller: https://support.omadanetworks.com/en/product/omada-software-controller/v5/?resourceType=tool
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Hi @ohaya1001
Thanks for posting in our business forum.
You can use this emulator to learn about the Omada system:
https://emulator.tp-link.com/5.11-605v2/index.html
As for the ACL, you expect to be, this router is not the same level as the Openwrt or routers that supports iptables configuration.
It can do basic ACL for IP and Port but is not as granular as an Openwrt system.
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Thanks for responding. Can you clarify? Would the Omada router be able to block incoming connections based on remote IP, and target IP and port?
FYI, my son, who works in networking (but not with Omada equipment) suggested:
https://www.amazon.com/dp/B0DDRC1T34
https://www.amazon.com/dp/B07GX6GVB6
Would that be able to block all incoming connections, other than the whitelisted one?
Thanks,
Jim
- Copy Link
- Report Inappropriate Content
Hi @ohaya1001
Thanks for posting in our business forum.
ohaya1001 wrote
Thanks for responding. Can you clarify? Would the Omada router be able to block incoming connections based on remote IP, and target IP and port?
FYI, my son, who works in networking (but not with Omada equipment) suggested:
https://www.amazon.com/dp/B0DDRC1T34
https://www.amazon.com/dp/B07GX6GVB6
Would that be able to block all incoming connections, other than the whitelisted one?
Thanks,
Jim
It is not perfect yet to specify the IP and Port like the Openwrt which you have many options and ways to achieve what you described.
It now has a limitation in Controller mode where you cannot specify the IP-Port Group in the directions.
For other aspects, see this:
ACL Guide Compilation
What worries me is that it might not be what you are after. So to avoid that, you can see the common implementation of this router.
Emulator of the controller: https://support.omadanetworks.com/en/product/omada-software-controller/v5/?resourceType=tool
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Thanks - I did take a cursory look at the emulator, but will do a more in depth look.
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Its quite easy with an omada router, in standalone or controller mode, to create a "block everything but these IPs" gateway ACL rules
First, you need a rule that is
Permit - WAN IN Source:Allowed IPs > Destination > IP_ANY
then you need a block rule under it
Deny - WAN IN Source: IP_Any > Destination > IP_ANY
Gateay ACL does support ip groups on the wan in and wan out directions.
These rules also wrok on VPN tunnels already established to the gateway allowing you to allow or block access to internal lan IP groups from specific VPN clients
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Hi All,
Apologies for the slow responses... been busy at work, stuck on some difficult problems :(!!
FYI, I ended up the TP-Link Omada ER7412-M2 and a TP-Link Omada Hardware Controller (OC200), and we (one of my son and I..., mostly him ;)!) set those up today, and I think got the whitelist setup and it seems to work.
We have Verizon/FIOS internet. The Omada is connected to the FIOS network, and to the Orbi router (both the Omada router and the Orbi router are cable-connected/plugged into the Omada router), and also the Omada is connected additional 8-port switch, and I have a couple laptops connected to that switch. I use one to connect to the Omada controller/console, to use as a test client, and and this 2nd laptop ("smalldell") which has a VPN installed on it, so I can change it's IP to different "external" IP addresses. I have a 3rd machine that is running a test Tomcat instance.
I configured the ACL to have a group of IP addresses that are allowed to get to the Tomcat port on that 3rd machine that is running Tomcat.
I think we've been able to get the ACL/whitelist working. I'm still doing testing but so far the tests are as expected, but I have a couple of questions:
1) The way I am testing is that I set the VPN to "United States", then I go to one of the "what's my ip" websites to get my "external" IP, and then I put that IP into the group on the Omada, then, from the "smalldell" laptop, I do a request to the Tomcat, and it works. I then change the VPN to (for example) Canada, the get the new IP again, and put that new IP into the group on Omada, and, finally, I test from "smalldell" again, then access fails (because the IP is NOT in the ACL group, so the Omada blocks it).
A question that I have is, if, say, a test fails, is there any logging that I can look at in the Omada that would allow me to see what IP address it was getting that caused it to block the request? I saw that the Omada can do pcap captures kind on-demand, but I am hoping that there might already/also be some logging that the Omada can do that would allow me to see that information?
2) Currently, if on one of the client laptops, I am connected to the Orbi via WIFI, then I can connect to both the Orbi admin console and the Omada console, but if I connected to the Orbi via ethernet cable, I can connect to the Omada console, but not to the Orbi console, because the Orbi is on the 192.168.0 subnet and the Omada is on the 10.0.0 subnet.
Is it possible to configure things so that I can connect to both the Omada console AND the Orbi console if I am connected to the network via ethernet?
Sorry for the longish post, and thanks in advance!
Jim
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