Sonicwall two interfaces same subnet. Subnet 192.
Sonicwall two interfaces same subnet. 1/24 VLAN ID 100 LAN Zone In this configuration computers in any of the subnets above can successfully reach each others, what I need to do is to block traffic between these two subnets? How do I do this? Sep 28, 2023 · Configuring a Site to Site VPN between two SonicWalls on the same WAN subnet with same default gateway Aggressive Mode - Used when One Site has permanent/static public IP and the other site has a dynamic/temporary public IP address. The static route may contain the source, destination and service to the Tunnel Interface. x DHCP) on different wan ports. 3 address) Destination Original - Any Destination Translated Oct 28, 2022 · This presents a problem for SonicWall's IP Helper. I need to communicate these network through the same sonicwall interface ( other interfaces are used for other different networks) A sample diagram of my network How can I assign two different WAN IP's from the same subnet to two different hardware interfaces on a SonicWALL TZ370? I have a block of WAN IPs . 1/24 is connected to X4. Jan 27, 2023 · Connecting two interfaces of the same subnet (using port shield) to different switches can be a loop nightmare depending on your topology. In the Interface Settings table, point the arrow Otherwise, if you use a class C subnet (subnet mask of 255. Jun 16, 2021 · This does not sound right. Why do you need two physical interfaces in the same network? Is this for redundancy? May 15, 2015 · On X4 Subnet, I can get to the Sonicwall admin page via both X0 and X4 interface address, but X4 cannot ping any other X0 addresses, and no X0 devices can reach X4 addresses. Mar 26, 2020 · Transparent Mode enables the SonicWall security appliance to bridge the WAN subnet onto an internal interface. Different service provider, I have no control over it. The network topology configuration is removed from the VPN policy configuration. 100 subnet. X1 is used for our primary production line. However there may be Oct 10, 2010 · The solution includes configuring a virtual or dummy subnet with same subnet mask as that of SonicWall LAN subnet, which would do one to one mapping (NATing) of virtual IP addresses to the SonicWall LAN IP address. May 17, 2013 · We have a SonicWALL 2400. 2. Jun 1, 2023 · In Layer 2 bridging, if two hosts belong to the same subnet, a Layer 2 network device such as a SonicWall firewall can connect these two hosts. 16. Dec 17, 2014 · I am trying to create a separate subnet, which is isolated from my LAN subnet. For true redundancy you need two different subnets so you can setup either failover, round robin, or bandwidth percentage routing to the secondary WAN. L2 Bridge Mode is ostensibly similar to SonicOS Enhanced’s Transparent Mode in that it enables a SonicWALL security appliance to share a common subnet across two interfaces, and to perform stateful and deep-packet inspection on all traversing IP traffic, but it is functionally more versatile. 0/24 subnet. 254 with the subnet mask 255. Then I allowed traffic to go from all LAN subnets on the sonicwall to the X3 subnet. 1 subnet, and another LAN (LAN 2) on the 192. 1 X0 LAN 10. Feb 6, 2024 · This follows different logic from the other interfaces where you have the 3 IP addresses: the single "virtual" IP that is configured on the interface at Manage | Network | Interfaces which is always the IP the ACTIVE unit responds to and then the 2 Monitoring IPs configured in Manage | High Availability | Monitoring | [interface edit Nov 22, 2021 · This article list all the Site to Site VPN, Tunnel Interface VPN and Third-party VPN configuration knowledge base articles. This feature is useful for high end deployments requiring more than 1 Gbps throughput for traffic flowing between two interfaces. I have a Site to Site VPN that works great with a single /24 destination subnet. 0/24 network to the SonicWall's interface address on the 192. I think this may be the problem. In this scenario, we will be adding two more networks on X2 and X3 interfaces respectively. LAN 1 is on the X0 interface, LAN 2 is on the X4 interface. The VM has 2 NICs X1 WAN 10. 1. 100 subnet and anything on the . Oct 28, 2025 · How to configure the WLAN Interface in L2 Bridge Mode (WLAN and LAN on same Subnet). The gateway device provides access between this interface and the external network, whether it is the Internet or a private network. " though. The problem is that one ISP has been unable to provide unique subnets for each WAN interface. But, I need one of them (say . If you are configuring several interfaces or subinterfaces as Wireless interfaces, you may want to use a smaller subnet (higher) to limit the number of potential DHCP leases available on the interface. These interfaces in the PortShield group will shared the same network subnet. 158, and it's the primary WAN. It sounds more like the poster is trying to 'extend' the LAN to second interface, but ya know, details. I have two interfaces on different subnets and I am trying to communicate between them what are the necessary configuration needed to do the same. This type of packet bridging works, for example, if the wireless interface and LAN Ethernet interface are assigned to the same subnet. More flexibility on how traffic is routed. Typically we add a routing entry on the SonicWALL for the new subnet, in your case that’s probably not necessary. 10. By enabling physical interface monitoring, you enable link detection for the designated HA interfaces. This functionality is available on all NSa, NSA and SuperMassive Jan 30, 2012 · Depending on the model of Sonicwall, one device can handle both connections. This group devices want to use WAN IP address 24. 156. • Hello, I have 2 WAN interfaces on my TZ670, X1 and X2. 4 DFGW 10. 98) to be routed to a 192. BUT, sonicwall does not like WAN interfaces to be on the same subnet, not sure of there is a way around that. The same borrowed interface may be used for multiple Tunnel Interfaces, provided that the Tunnel interfaces are all connected to different remote devices. X This release includes significant user inte • Transparent Mode —Allows you to assign a single IP address to two physical interfaces, where each interface accesses an exclusive range of IP addresses in the shared subnet. It requires valid IP addresses for all computers connected to the interface in Transparent Mode on your network, but allows remote access to authenticated users. Sep 27, 2023 · How to Configure a Tunnel Interface VPN (Route-based VPN) between two SonicWall UTM appliances running SonicOS 5. Oct 23, 2024 · Both private IPs are translated from the same public IP but are based on different source ports. Nov 29, 2012 · Just add a static ARP entry for a single IP of the second WAN subnet provided by the ISP from Network menu in your sonicwall. This scenario based article illustrates how additional subnet/s can be added to an active Site to Site VPN tunnel between two Sonicwall appliances. 5 and earlier firmware. Oct 14, 2021 · Description How to Configure Static Routes in SonicOS Enhanced Video Tutorial: Click here for the video tutorial of this topic. 1 to 192. Oct 5, 2017 · A customer has two group of devices. When you add a VLAN sub-interface, you need to assign it to a zone, assign it a VLAN Route Secondary IP to another interface in SonicWall 2600 Hi! I am trying to bridge traffic from my SonicWall to a secondary firewall in a different building and I am not sure how to set up SonicWall to forward all traffic to my second IP to a different interface (X5) I have two interfaces, X1 and X5 both belonging to the WAN zone. Currently, daisy chain switch mode is not supported. 0/24 (overlapping) Virtual subnet used to enable remote VPN client access to the corporate network: 10. Logical monitoring involves configuring the SonicWALL to monitor a reliable device on one or more of the Mar 26, 2020 · There should never be any overlapping scopes for the two DHCP servers for any dynamic IP pool. If the switches the Sonicwall is connecting to are not connected to each other, then it wouldn’t be an issue. 168 with Netmask 255. This is also called Virtual Interface or VLAN (Virtual LAN) subnet. 1, I get “Error: Index of the interface: Subnet on this interface overlaps with another interface” ps83tech (PS83Tech) June 14, 2013, 5 May 8, 2025 · If you need a secondary LAN, you can just configure a free interface on the SonicWall with a separate IP scheme and enable DHCP on that interface. 0. Jun 29, 2021 · Description This article will guide you through the process of configuring the SonicWall to translate multiple networks for use across a Site to Site VPN. I want to use a sonicwall to connect into the ISPs network, which is working nicely on the 1 IP Address, I want to give one WAN IP from the pool, to another tenant in our building who has their own firewall equipment, instead of giving them The Remote IP Address of the endpoint of the Tunnel Interface should be in the same network subnet as the borrowed interface. So just make a new NAT/Firewall rule using the . I really appreciate all of the help. This interface acts as the gateway to the WWW for our all of our LAN's. 0/24 (This has to be a unique subnet with the same subnet mask as the corporate network) Jul 11, 2024 · Packets with the 'Source IP' from a subnet different than the subnet configured on the 'Ingress' interface. There will be a parent interface which is the physical port sharing all the traffic from the VLAN that has been tagged for logical isolation. As per your description, you wanted to use same subnet on two different interfaces of the NSa 3650. CAUTION: HA does not support PortShield interfaces The LAN (X0) inter Oct 14, 2021 · The Remote IP Address of the endpoint of the Tunnel Interface should be in the same network subnet as the borrowed interface. To configure an interface for transparent mode, complete the following steps: Apr 24, 2020 · If the computer is connected on a different Subnet, the only possible reachable interface IP would be the one closest to the source of the traffic. 5, creates a Tunnel Interface between two end points. • If I try to add a second/additional virtual interface on another physical port with the same subnet as the first one, the only thing the interface allows is to "bridge" the new virtual interface to the existing first virtual interface - not assign an IP or subnet - the new virtual NativeBridge secondary has an IP address of 0. Transparent Mode —Allows you to assign a single IP address to two physical interfaces, where each interface accesses an exclusive range of IP addresses in the shared subnet. Sep 9, 2016 · But in general, you basically create an address object with the range and and create a route to tell it to only use Public IP 1 (. Jul 28, 2022 · Transparent Mode works by defining a Transparent Range which will retain their original source IP address (will not be NAT'd) when egress from the WAN interface. 252. X2 is primarily used for our Wifi network so that local users on a subnet have access to it via it being the default gateway. When you add a VLAN sub-interface, you need to assign it to a zone, assign it a VLAN Oct 1, 2014 · 0 I am new to sonicwall. It does not allow multiple policies to be created with the same "From" address, so how can it forward clients DHCP traffic to a second DHCP server if the first one fails? Mar 24, 2016 · Hi there I have a new internet connection to setup. While, a PortShield interface is a virtual interface with a set of ports assigned to it. This would be useful in environments where an ISP has assigned a customer multiple dissimilar public IP subnet blocks, and the customer wishes to use IP addresses HO has 2 ISPs and two seperate tunnels for each ISP. If you have routers on your interfaces and if you want to access the computers attached to the router, you need to configure static routes on the SonicWall security appliance on the Network | Routing page. I want some controlled traffic flow between these subnets. Subnet 172. 49) and then you create another address object with and route to route it through public IP 2. so we want to communicate between X0 and X10 interface also X10 interface must access the WAN If configuring a WAN zone interface or the MGMT interface, type the IP address of the gateway device into the Default Gateway (Optional) field. Jun 13, 2013 · They are all in the same zone, but no IP address have been assigned to X2 and above. (This prevents a lease for the same IP from being given to multiple machines) Overlapping scopes are permitted for the two DHCP servers only for IP addresses that are statically mapped by MAC address. The problem that you may have with two sonicwalls on the same subnet would only be if there is a routing issue that creates a route loop if you have traffic originating from SW2, but the default route pushes traffic out SW1. Only change required on the SonicWall is, please ensure X0 zone (LAN) to X5 zone and vice versa access rules are allowed. Other than that, add an ARP entry for your secondary IP on the SonicWALL bound to the X0 interface MAC address if that’s what you’re using for LAN. Branch has a Sonicwall TZ 80, with the same 2 ISPs. Need to establish tunnels: Branch ISP A <> HO ISP A Branch ISP B <> HO ISP B The local & remote subnets are the same for both tunnels. 255. You can also create a custom zone to use for the Layer 2 Bridge. PortShield interface can work in two modes (Static and Transparent Otherwise, if you use a class C subnet (subnet mask of 255. Thats not how IPv4 routing works. May 17, 2013 · We have a sonicwall 2400, Is there any way to assign multiple interfaces to the same lan subnet? Basically, we would like to have X1 for the wan and X0, X2, X3 and X4 connected to 4 devices that wo Nov 30, 2023 · Description This article explains how to configure a Secondary subnet on the LAN interface to manage the SonicWall appliance. 2 address based on the default nat policy. 50. We had previously configured one interface to handle all routing within the subnet 192. Apr 28, 2021 · I don't know anything about Sophos devices, but @Rais is correct: if you were moving it the other way (to the SonicWALL) you can't have two interfaces on the same subnet, but you can utilize 2 IPs on the same subnet for NAT and Firewall rules - perhaps the Sophos is the same. Not sure how that fits in with "internet traffic of the test clients would go through the Sonicwall. Add a second WAN example on x2 and connect the second ISP to that interface I cannot find any documentation on adding a second subnet and second IP for a VLAN interface on the SonicWall NSA's. 1 and subnet mask 255. Transparent Mode – A method of configuring a SonicWALL SuperMassive that allows the SonicWALL to be inserted into an existing network without the need for IP reconfiguration by spanning a single IP subnet across two or more interfaces through the use of automatically applied ARP and routing logic. May 13, 2020 · LAN subnet (X0 Subnet) behind SonicWall (corporate network): 192. On the High Availability > Monitoring page, you can configure both physical and logical interface monitoring. With these policies in place, the SonicWall will translate the servers public IP address to the private IP address when connection requests arrive from the WAN interface bound for the IP of the Webserver Public address. Is there any way to assign multiple interfaces to the same LAN subnet? Basically, we would like to have X1 for the WAN and X0, X2, X3 and X4 connected to 4 devices that Apr 22, 2016 · Currently internet traffic goes out the X1 interface (. Otherwise, if you use a class C subnet (subnet mask of 255. 192. Is there an issue with /24 . To configure the SonicWALL security appliance for IPS Sniffer Mode, you will use two interfaces in the same zone for the L2 Bridge-Pair. NOTE: A default gateway IP is required on the WAN interface if any destination is required to be reached via the WAN interface that is not part of the WAN subnet IP address space, regardless whether we receive a default route dynamically from a routing protocol of a peer device on the WAN Jun 29, 2021 · Description This article will guide you through the process of configuring the SonicWall to translate multiple networks for use across a Site to Site VPN. 0/24 LAN subnet to which the GVC Client PC belongs: 192. The below resolution is for customers using SonicOS 7. I was able to get the 2 networks communicating by using the default network gateway appliance. Bu Nov 30, 2023 · The following article explains how to configure Virtual Sub-Interfaces on the SonicWall appliances. 0 and GW of 192. I am having trouble setting a route up for this. Sep 29, 2023 · This article explains how to configure High Availability on two SonicWall Appliances. When you configure an interface with a different subnet, what the Sonicwall cares about is what zone that new interface is in. The switches can be deployed with one or two dedicated uplinks and also with common uplinks. In others, it's the same ISP but with multiple circuits. With this feature, users can now In IPS Sniffer Mode, a Layer 2 Bridge is configured between two interfaces in the same zone on the SonicWALL, such as LAN-LAN or DMZ-DMZ. Jun 29, 2015 · 1 I have a LAN (LAN 1) on the 192. X This release includes significant user interface changes and many new features that are different from the SonicOS 6. Should work, works for us time and time again. 2 - 192. All traffic passes. Either both tunnels should be up at the same time OR ISP A tunnel should A gateway is optional for DMZ or LAN zone interfaces. May 4, 2023 · Hello, I have a VM inside of azure which is running Sonicwall NSv 270 I am trying to build an IPSec tunnel between it and a remote site. My trouble is the Sonicwall is not the default internet gateway either, so I can't assign the Sonicwall as the endpoints default static gateway. Nov 26, 2012 · 2 As recommended by David Schwartz, the way I solved this problem was to create a NAT entry in the SonicWall that translated the "Source Address" from the 192. 1 address). Can interface, X14:V10 for example only have a single network assigned to it? If so, it sounds like I'll have to just bump this to a /22 Does that make sense???? Oct 15, 2017 · If the two zones can talk to each other, SonicWALL’s DHCP can simply hand out the same DNS addresses that are in use on the primary subnet, and internal systems should find each other just fine. 0) for each Wireless interface you may exceed the limit of DHCP leases available on the security appliance. Behaves as a proxy at Layer 3, intercepting ARPs and changing source MAC addresses of packets traversing the interface pair. NOTE: The upper limit of the subnet mask is determined by the number of SonicPoints you select in the SonicPoint Limit field. My question is: Can I set up our SonicWall interface (x0) with a larger subnet mask, such as /22, using the IP 192. Oct 14, 2021 · This article covers how to configure an interface as secondary WAN port in SonicWall Resolution for SonicOS 7. I have a situation where I have a Sonicwall NSA220 serving as firewall/router for two internal subnets to two external WAN connections. 2 subnets on the same interface without using VLANs? Hi, thank you for your time in advance. Example: on X0 (LAN)interface 192. Apr 21, 2025 · Save the settings then edit the WAN Interface and add any IP address in the subnet you wish, once you have added an IP and subnet mask you can then use any IP in that subnet for NAT policies. In my lab there are two local networks connected to same switch (networks are overlapped). It's possible that simply NATing the [untrusted?] clients would work around the "client must be in the same subnet as the resource" requirement? Not every Aug 29, 2022 · L2 Bridge Mode is ostensibly similar to SonicOS Enhanced Transparent Mode in that it enables a SonicWall security appliance to share a common subnet across two interfaces, and to perform Stateful and deep-packet inspection on all traversing IP traffic, but it is functionally more versatile. You don't need any downtime for this. The issue I'm facing is getting the X2 interface to have access to a system on the X0 interface. Aug 7, 2023 · In this scenario, your ISP provides you with a range of public IP addresses for using purposes, however, SonicWall firewall only allows you to assign a single public ip address into a WAN Interface. Routes will be auto-configured by the SonicWall when you configure the X0 and X5 interfaces with respective IP subnets. 57 as the public IP address. The sonicwall has no problem with 2 ISP's with the same subnet's (internal 192. The VPN shows UP, but traffic is dropped. When using multiple public IP addresses with your SonicWall firewall, you have the flexibility to implement Static ARP entries, a powerful feature that optimizes network communication and enhances Nov 13, 2023 · The sonicwall interface itself is simple, just add one subnet as the IP address and then add a secondary address for the other subnet - to add the second create an address object in the same zone (lan) and same interface, create ma static route to the subnet via the interface. If you configure a new interface, in this case x3, and setup the DHCP server for interface x3, yes, anything connected to the switch on x3 will get an IP address from the DHCP server on the sonicwall. I do not have the freedom or budget to buy any managed firewalls that support VLANs, so the use of them is no option. Identical packets arriving on two different 'Ingress' interfaces at the same time. Apply a temporary address and then change it when you cutover. PortShield Switch Mode —For SonicWALL TZ 210, TZ 210W and NSA 240 appliances, you can configure interfaces for PortShield switch mode that manually groups ports together to share a common network subnet as well as common zone settings. He has provided parameters. Arkwright Edited October 2, 2024 at 12:00 AM The short answer is "no". Jul 17, 2023 · The SonicWall security appliance includes a DHCP (Dynamic Host Configuration Protocol) server to distribute IP addresses, subnet masks, gateway addresses, and DNS server addresses to your network clients. The link is sensed at the physical layer to determine link viability. 0 ? Subnet Mask Change: Current Setup: Interface Mar 25, 2021 · This KB explains how SonicWall switches can be deployed with the SonicWall UTM devices in high availability mode. 1/24 LAN Zone Virtual interface X2:V1 192. Can someone help me with how this should be set up? Thanks. Jul 20, 2023 · The X0 interface on the SonicWall, by default, is configured with the IP 192. I No need of any manual routes. 0/21 subnet present and currently it is working now we have created X10 interface with 192. 255 , and the DHCP server was set to the same range. EXAMPLE: We are using the Network below as a example for this article. I add a NAT policy that mimics the default one like so Source Original - DMZ subnet Source Translated - DMZ External (. 0/24 network. 120 IP. Is there any way to add multiple ip's to a sonicwall interface ?. Saravanan (SonicWall, Inc) Edited July 22, 2020 at 12:00 AM Hi @ RichSki , Thank you for contacting SonicWall Community. Transparent Mode enables the SonicWALL security appliance to bridge the WAN subnet onto an internal interface. Jun 5, 2025 · Link Aggregation provides the ability to group multiple Ethernet interfaces to form a trunk which looks and acts like a single physical interface. A gateway is optional for DMZ or LAN zone interfaces. But when I add another Destination Subnet to the Address Group, traffic will no longer pass correctly. 56 as the public IP address. I am replacing an outdated generic firewall/router and replacing it with a tz-370. 101 subnet able to reach the internet and the other systems on the . You can use any interfaces except the WAN interface. Oct 1, 2024 · Trying to setup the second interface as a WN port for the External IP in the same subnet as the first WAN interface and have the Error Message: "…Subnet on this interface overlaps with another interface…" Is it any solution to use 2 external IP on the same subnet fort the 2 WAN interfaces? Thanks. The advantages of Route Based VPN are: Any number of overlapping static routes can be added for the Otherwise, if you use a class C subnet (subnet mask of 255. The network device bridges the packets from one host to another. I've tried with the different gateways on both interfaces. SonicWall LAN subnet 192. If you configure 5 new interfaces with 5 new subnets, but made them all LAN zone they would all talk to each other. 1 subnet. Subnet 192. 158. X0 LAN ZONE X4 LAN ZONE note: you could use different zone, dmz, wlan or lan2, etc, the following steps Jun 10, 2015 · 2 I have two interfaces on NSA 220 configured as follows Real interface X2 192. To get around this Sonicwall has a feature called PortShield, which allows you to set a second (or third, fourth, etc. I need a zone/subnet to go out the same interface as the . You can use an interface in Transparent mode for public servers and devices with static IP addresses you want visible Nov 30, 2023 · The following article explains how to configure Virtual Sub-Interfaces on the SonicWall appliances. 154-. The most used configuration for dhcp server is the range from 192. 4 I have 2 Subnets in Azure for these… We bought the SonicWall NSA 2700. But when I config X2 with an IP (192. 2), subnet 255. NOTE: Due to the way this is processed, the same application can be completed for a Tunnel Interface (Route Based VPN). Customer CommunityLoading Sorry to interrupt CSS Error Refresh Sep 6, 2022 · It is not currently possible to directly assign more than a single IP address to a primary or secondary WAN interface, but the SonicWall appliance is capable of answering on behalf of a 1-2-1 NAT policy set up for a network resource. 0 ( /24 ) has 254 usable IP addresses. EXAMPLE: Let's consider the following IP scheme for the purpose of article. ) physical interface to be on the same IP subnet and security context as You can put interfaces in different zones in L2 bridge mode but have them as the same network [ie, L2] with zone>zone access rules. It identifies itself as the . X0 and X5 can be on same zone or you can have X5 on a different zone. The access rules between LAN to LAN can be set so that this new network cannot interfere with the existing X0 subnet. SonicWALL Enforce Client Anti-Virus Service - Enforces Client Anti-Virus protection on multiple interfaces in the same Trusted, Public or WLAN zones, using the SonicWALL Client Anti-Virus client on your network hosts. I want to be able to access a device that is on LAN 2 from a computer on LAN 1. 168. If you've got two networks on the same interface then you can't have DHCP on both because the firewall won't ever know which scope it should be serving the request from, will it? So you can only have static clients in one network and DHCP+Static clients in the other, if they're in the same L2 broadcast domain. 3 address. Static routes can then be added to the Tunnel Interface for reaching the remote networks. Oct 10, 2010 · Adding a subnet or subnets to an existing Site to Site VPN Tunnel (SonicOS Enhanced). Oct 24, 2024 · Most networking equipment will not allow this as it would then not know which interface to use to route to this subnet. Works like a charm. X1 is assigned . 0 mask 255. One destination is /24 and the other destination is /29 , both objects are in the VPN Zone, and are in same Address Group. 101. The only exception is for the traffic coming from VPN using the option Management via this SA. I have 1 WAN IP, however the ISP has also allocated 4 other IP addresses, in a different subnet to me. Oct 14, 2021 · Route Based VPN configuration, introduced in SonicOS Enhanced 5. In some locations this is two separate ISPs. Jul 22, 2022 · Resolution for SonicOS 7. As BWC said you cannot have two interfaces in the same subnet. If both IP addresses are in the same subnet then there is only one WAN connection that they are providing with multiple IPs and/or ports. 1/24 is connected to X0. To configure a physical interface on SonicWALL with a static IP Mode: Navigate to NETWORK | System | Interfaces. I hope to control it using the Sonicwall firewall rules. x address, and have that address reachable by the . 9 firmware and above. X firmware. The advantages of Tunnel Interface VPN (Route-Based VPN) between two SonicWall UTM appliances include. ggpqlbk muib 3yf h9qw0 shrc nm yxkyw szmau6 mc gf9sw