0 and the end is 1. For the last one: -1 to the last octet in the broadcast address. Share. See you are already given subnet mask 255. Apr 21, 2015 · They do overlap. A while ago cciepursuit described his problems with PPP-over-Frame Relay. What if the users use overlapping addresses. 201, with a /26 address for Hosting Access IP, running over VLAN 201. q/16. 0/25 (a netmask of 255. 0. x and 7. The user can now toggle between the two virtual networks in their WARP client, similar to the concept of switching VPN profiles in a VPN client. Working on FortiOS 7. You should tell the router that it has 192. Dec 21, 2023 · If you’re using a wireless or USB network adapter, disabling it and then re-enabling it can fix the Windows IP address conflict. Next, assign the staging virtual network to 10. “The subnet [X] overlaps the subnet [Y]” But, this isn’t even my fault! I got these IPs from AWS! When a DHCP server allocates this IP address to a different network device, then the reservation violation results in IP address conflicts. 0/24 for DC2 (though there are many, many different ways you could subnet each location, all dependent upon the current and future requirements of each). 120/30) Lets say You need to find out overlap of (ip_one , mask_one) and (ip_two , mask_two) This will return true if overlapping occurs. Each building serves approximately 30 to 60 Jun 28, 2006 · I've created an ip address pool for the users; 10. Dailer 0 connected to interface , Ip unnumbered fastethernet0/0 Sep 25, 2013 · Let say I have a few Virtual Systems that represent separate clients and each of the users has a common interface for external communications. It means that you are using the same IP range on both interfaces, or overlapping IP ranges. local). That's the whole reason NAT is configured to allow access to overlap networks. -other protocols fail to return anything to the clients (ie, MS RDP). Additionally, the entries in Assets->Host Assets only define what the subscription is allowed to scan, it does not define actual discovered assets. 10-23-2012 11:22 AM. Here are some typical scenarios where overlapping IP ranges may arise: Planned IP RangeOverlaps for IP Exhaustion Mitigation. Or. 150 VPN server will be at 192. You’ll need local user and administrator permissions to do so. So in your case, your second subnet should be 192. 90. 0 network is directly connected to interface Gi0/0. e. Nov 6, 2009 · If I understand your problem correct you are trying to connect to the internet using the IP address range your ISP gave you and also use the same address range on your internal LAN. Improve this answer. 0 to interface Gi0/0 it means that the entire 172. Jul 7, 2017 · Setting up a Pace 5268AC (next to worse thing ever created) with 5 static public IP addresses say x. 1/24. 255. 0 Helpful. It also offers insight on how to overcome it using NAT virtual machines and using a solution from Oracle Cloud Marketplace, Aviatrix. If you had 99. While there are traditional workarounds to reduce the impact, F5 Volterra provides a way to avoid the problem altogether. 15 Helpful. The IPs that come up with this address are always from the DHCP pool. on an ISR router either you have a single policy map applied to main interface and in that case you need to match both on source IP address and on VLAN id to differentiate the traffic from different VRFs or you can have a per subinterface policy-map and in this case you have no problems of overlapping as the point of application (the VLAN based subif) will Aug 21, 2015 · To find a subnet address of any IP address, mask the given address with the mask. 0/8 denotes a network, the starting address is 1. Any advice will be appreciated. If your Azure hack works, you're just going to run into a bunch of other problems, and you'll have to hack around each of those too. a new customer want to connect me via my router interlace & his requirement is to connect with the same ip address which i am already using in my network ( one of my LAN segment on which i am forwarding traffic f Apr 25, 2009 · Command fail. The Cloud VPN documentation claims that you actually may connect client's infrastructure but routing will not work as you need. Just AND the address with the mask to get the May 31, 2013 · The purpose of the above Dynamic PAT configuration would be to mask the Support Network with an PAT IP address that is already part of the L2L VPN configuration between Monitor and Client site. Use 192. Nov 19, 2016 · Just start with the five IP addresses listed in a single column, and then follow the three-step process outlined in the previous section to find any VLSM overlaps. Apr 24, 2023 · Ip overlapping on Router on Cisco packet tracer. 222. This is solved by Shared Gateway and single Virtual Router is used to route the traffic for all of the Virtual Systems through the Shared Gateway. Apr 2, 2015 · i am facing an overlap ip addressing scheme issue in my network. A /24 is equivalent to a netmask of 255. 128/25 for the second network. x and other interface should be 10. 255, and there are 16777216 addresses in the network. Feb 29, 2024 · The Problem of Overlapping IP Addresses As organizations grow, they often end up with overlapping IP addresses between their internal networks and any external networks they connect to. here what we are trying to suggest you, user deferent network like 10. You must similarly avoid IP address conflicts between a VPC and on-premises environments or with other cloud providers that you use. Aug 10, 2005 · This document demonstrates how you can use Network Address Translation (NAT) for overlapping networks. **Please Rate All Helpful Responses **. I would then only need to route that 1 IP into my core/dist network, leaving no overlapping problems. Given that both companies are currently using overlapping IP address ranges, the most straightforward and effective solution to quickly connect the two companies without causing IP address conflicts would be to reassign a new, non-overlapping IP address range to the local company. store1. 10, but also in the second subnet can be a. Option 2: Use a private DNS server. Overlapping IP address ranges can cause significant problems for companies that merge networks after corporate acquisitions, or for Managed Security Service Providers (MSSPs) who are bringing on new Jun 17, 2019 · I still get an overlap error, but I do not understand why. However immediately after the first example, which is the first entry in the data, the second entry is 1. Dec 26, 2023 · A CIDR address overlap can have a number of consequences, including: Network connectivity problems: If two networks have overlapping IP address ranges, it can cause network connectivity problems. 0, that doesn't overlap with 99. Jun 14, 2021 · This will give you ALL of AWS’s public-facing Infrastructure IP CIDR Ranges. 0/24 for DC1, and 172. 'Conflict with ‘portx’ subnet. For instance, you could use a subnet like 192. This won't work. The purpose of the above Static Policy NAT would be to provide the Support some other destination network other than the one overlapping with its own Oct 17, 2008 · Summary: Virtual template interfaces should be unnumbered to prevent address overlap on virtual access interfaces. I am using openserver checkpoint 77. 0/16 won't work since that includes the 192. p. Upvoted because you are technically right and because I strongly suspect that Stumped on a tech problem? Ask the community and try to help others with their problems as well. Oct 27, 2004 · overlapping IP addresses Hi, have a problem, I have network segment that has to go behind Fortinet internal interface, and equipment cannot change it' s IP addresses! I am ending up with 10. In this example we have Store 1 and Store 2: A network is created for Store 1, and a domain route to the network is also created (vs. 0/24 The dhcp server of local router assign IPs in the range 192. Unless you adjust the mask in vlan 10 you will continue to get overlapping address errors. as I assigned my first ip 172. ” Table 22-4 VLSM Overlap Practice Problems Overlapping IP addresses is a common occurrence across on premises datacenter and public cloud regions. This is a bigger problem than just the AD trusts. host with the same address. Feb 9, 2017 · 1 Accepted Solution. yml files which also may become hardly portable due to the hard coded addresses. # config vdom. 10-15 subnet 255. having a management IP address that overlaps with the VTEP address space, (it can't figure out which interface to send management responses on) or; being accessed from a workstation that is using an IP address that overlaps with the VTEP address space. This is just basic subnetting, its not so much the first octet, its the netmask of 255. It will be a never-ending chain of hacks just to keep Apr 26, 2022 · Overlapping IP Address Space is a very common problem in public cloud. 193 - 172. 10 255. R1 (config)# interface FastEthernet0/0. A connector is installed for the Store 1 network. Hope this helps! Nov 19, 2016 · Just start with the five IP addresses listed in a single column, and then follow the three-step process outlined in the previous section to find any VLSM overlaps. 1 255. R1 (config-if)# ip address 192. 104. x /24 on fa0/0 and 192. 1 to my 0/0 gigabit interface all is well. 0 network you define 10. They cant see anything on my internal net! What I mean is: -pings to known, good servers fail. 1q standard could be a solution. And they need to use exinting arranements for Internet access also. This command is useful in situations such as overlapping networks, where the inside network addresses overlap addresses that are outside the network. LISP does not solve the "problem" of overlapping subnets at multiple sites. The scope forms a constraint on an IP address that enables duplicate IP addresses to be distinguished. You can't configure static PAT on the same ip address "DMZ_IronPort_2" on the same port (TCP/25). which ones overlaps, you have to: order the subnets from the lowest to the highest; find the respective subnets broadcast address; Mar 1, 2019 · This is a common result when two companies merge together. 101, with a /26 address for Colo Access IP, running over VLAN 101. My main problem are the overlapping network ranges, and the individual target routers of the 192. Note that this new network cannot overlap the VPN network in any way, i. If you insist on using a fixed IP address on virtual template interfaces, don’t expect OSPF to work. Overlapping networks result when you assign an IP address to a device on your network that is already legally owned and assigned to a different device on the Internet or outside network. Jan 6, 2024 · This overlaps with the existing subnet on FastEthernet0/0. For the first usable address in the range: subnet address + 1 on the last octet. Press and hold the Windows + R keys on your keyboard. Overlapping IP address ranges can cause significant problems for companies that merge networks after corporate acquisitions, or for Managed Security Service Providers (MSSPs) who are bringing on new Jul 31, 2008 · I have started a solution that would take the incoming IP ranges and using the "ip nat inside source list <omitted> overload" be able to NAT the customer into 1 IP address. The 144 address is not a multiple of 32. yml or use an existing one => requires changes in all your docker-compose. For all of your LISP sites, you must ensure that IP addressing is unique. You need to address the overlapping IP address networks instead of hacking around it. Does anyone know what SW/HW I can use to setup a VPN server that can use a pool of IP addresses in the same subnet as the local lan that's installed in? I mean: Local LAN is a sort of 192. Level 4. I have the same thing going on at work and know that there arent two devices using the same ip. Oct 14, 2010 · Maintain our /21 IP address on the router on the Interface (fa0/0), and consider this the native VLAN. The answers can be found near the end of this chapter, in the section “Answers to Earlier Practice Problems. I'm convinced this is some kind of unifi controller bug. Please use our Discord server instead of supporting a company that acts against its users and unpaid moderators. This means that any subnet with a /27 (32-bit address - 27-bit mask = 5 addreess bits, 2^5=32) must start at a multiple of 32. Jun 7, 2012 · 2. 8/29 because 172. No address in either /26 is in use on the /21. Type in ncpa. Simplified, I am looking for a way to provide routing according to the dotted lines in scale. 252. FortiGate gives the option to enable overlapping subnets, by using the following CLI command and no option on GUI: (If the VDOM is enabled on the configurations, make sure to enter the correct VDOM before). Overlap happens due to /16 means network id uses octets 1 and 2; and hosts are in 3, 4. 2 255. Ubiquiti tech. Let’s see approach of how H1 and H2 users can access both Servers without performing much change in network. Return code -54. edit <VDOM>) Nov 23, 2019 · My understanding of an IP forwarding table is that they have a listing of different networks (identified by their IP ranges) and connects it to the next-hop router. answered Apr 21, 2015 at 5:09. Having created that mapping, the NAT device translates: ¶. 1. 0 two octed will be utilized fully like 10. Nov 13, 2009 · I understand I can use IP address negotiated command under dailer interface but my problem is I need to assign 2nd public IP on the router' Fa0/0 interface( on same subnet) to communicate with the Sonicwall using public IP. i am working in a SP type company providing service to the customer. Dec 17, 2010 · actually overlaps with the existing static NAT that you already have: static (DMZ,WAN) tcp PCCW_Pri_SMTP smtp DMZ_IronPort_2 smtp netmask 255. However, I'm surprised why two entries in this listing have overlapping IP addresses. com Jun 16, 2022 · In this environment you would create each of the VPCs with an overlapping IP address range (10. orev. You see, the APICs can't handle. 10. We then propose, explain Nov 15, 2022 · It allows you to configure overlapping IP address pool groups to create different address spaces and concurrently use the same IP addresses in different address spaces. Jul 7, 2021 · Subnet address last octet + wildcard = broadcast address. 04-24-2023 09:55 AM. 8. -. In addition Nov 17, 2018 · This action translates the destination address of the IP packets that travel in the opposite direction—from inside to outside of the network. Options. 10 no problem, it starts at the rest of the interfaces because the subnet is letting t Jan 25, 2017 · The problem is that your second and third ranges overlap. Regards Award. Both Seattle and Denver are using 10. Overlapping IP ranges can occur in various scenarios within cloud networking, often presenting technical challenges that require sophisticated solutions. This is because two devices on different networks with the same IP address will not be able to communicate with each other. 1/255. Solution: If the MAC address associated with the conflicting IP address is that of a network device or host, release its current IP address and manually configure the device with an available IP address. Jan 27, 2015 · Hello, I need help in finding out whats wrong with my vpn setup with overlapping range. support promptly provided me with the MAC addresses of the devices triggering several overlapping IP address reports from the Aug 25, 2022 · In this video we unpack the semi-common problem of overlapping IP addresses when connecting to other companies from Microsoft Azure. 64, and it's range of usable addresses for hosts should be from 65 to 94. The SOLE use of the Networks feature is to provide uniqueness between two assets with the same IP address. I expect that this scenario is supported in different VDOMs, but I would also expect it to work as described in the same VDOM. Since another NIC can't be added to the existing VM instance, VLAN compliant with the IEEE 802. 255 so youir vlan 602 will be overlapped . 20. 3 Aug 15, 2020 · To solve this problem, I was thinking of doing something like IP range manipulation in which I will have completely made up or unreal IP ranges for each overlapping remote cloud, i. 240. y/16, the unreal will be 10. Regards! Expand Post Aug 15, 2023 · For those, again an IPsec tunnel is established, and again we might have overlapping IP addresses. when I assign my sec ip address 172. 254 and 172. Feb 16, 2016 · The IP Overlapping Address Pools feature should be used only in cases where overlapping IP address pools make sense, such as Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) environments where multiple IP address spaces are supported. After that, I will have separate EC2 VPN server for each of these remote clouds. Intuitively, I assumed that changing Gi0/1 to a /24 mask would put everything under one network between both interfaces and clear them from having overlapping IP addresses (as each interface can only be assigned 1 of the 254 host addresses for that subnet mask), but that's not the case Using CloudConnexa, an administrator can quickly connect two or more networks with overlapping IP address ranges. View solution in original post. However, although users get connected ok, an odd problem has occured. That is the fallback address for most UI equipment. The second option is to deploy a private DNS server with specific DNS zones to address each subnet containing IP-overlapping resources that needs to be served via Twingate. The Solution is Proposed based on the Generic way of finding two integer ranges overlap. 0/24 range. Solution. Network Address Translation (NAT) IP fragmentation causes problems for Network Address Translation (NAT) devices. This is not supported. Jul 18, 2022 · 07-18-2022 10:09 PM. eth1 192. Mar 16, 2024 · C. with the ip address 10. You can't use Cloud VPN with overlapping subnets. For example, a forwarding table in a router can look like. Regards, ML. VLAN Attachments are supported for Free Online Classless Inter-Domain Routing (CIDR) Range Overlap Calculator Aug 5, 2020 · Solutions: manually define the network and its address range in docker-compose. 99 255. Chance your classes so there's no common address space. 192/26 or any other range that doesn't overlap with your existing subnet on FastEthernet0/0. However, in some scenarios, such as in a multi-tenant deployment where each tenant is responsible for their own IP addressing, there must be some provisioning for overlapping subnets. 123. 0, so you can't stuff two networks inside the 192. For example: The empty string means the "global" or "default Jan 27, 2015 · Hello, I need help in finding out whats wrong with my vpn setup with overlapping range. 129 - 172. 3. Jan 31, 2024 · To solve this problem, add a 10. 3. An overlapping IP address is an IP address that is assigned to more than one device or logical unit, such as an event source type, on a network. Sep 1, 2021 · Step 2: The Private NAT Gateway translates Source IP from non-routable IP address to a routable IP address and then sends the traffic to the Transit Gateway Attachment in VPC-A as it is associated with the “Routable Subnet-RT” route table in VPC-A. We would like to show you a description here but the site won’t allow us. Overlapping networks also result when two companies, both of whom use RFC 1918 IP addresses in their May 23, 2017 · This is where NAT command reference of “ IP nat outside source static ” comes to play. 248 to work on the 2921 router When configuring an interface GI 0/0 ip address x. As different teams work in silos, they ended up using same address spaces. Assign a new IP address range to the local company. 24. BMC Discovery uses an identity scope to distinguish between overlapping address spaces. Foultazz. 0 and you'd be able to use both at the same time. Subnetting also means using proper masks, not just considering an IP range a subnet. 33 to my 0/1. If you're able to connect your Wi-Fi adapter to any IP subnetwork other than that used by your VPN's remote network, you'll avoid the problem described above. The way to do this is to convert the IP addresses and masks to binary (all IP addresses are simply 32-bit binary numbers), and mask the addresses with the mask by performing a logical AND. x, I've noticed that I can't configure overlapping IP addresses on interfaces bound to different VRFs within the same VDOM. 0 that it. The best practice in this scenario would be to employ two non-overlapping, different IP spaces/subnets at each DC, such as 172. • 2 yr. 100. The issue is this, when pasting in the values, separated by commas, Azure doesn’t like when there are overlapping entries. Step 3: Transit Gateway uses the 10. The router will work it out as 172. In any such question, it helps to do it in binary. Enterprises are faced with this problem mainly due to lack of planning prior to cloud adoption. In the front-end subnets you can add routes to the other front-end subnets (or just use a default route) that has Transit Gateway as the target. Putting 172. 20 and the vpn is between me and cisco ASA 5555. In real networks, if two subnets overlap, when a router needs to send a packet to an IP address inside that range of overlapped addresses, the router may forward the packet to the wrong subnet. So something like below. If you assign 172. Apr 22, 2020 · if use /24 which is 255. Most probably his problems were caused by a static IP Stumped on a tech problem? Ask the community and try to help others with their problems as well. x interface on external and 10. Information About IP Overlapping Address Pools. You can't have the same subnet exist locally at the VPN Client LAN network as well as your network since they are Layer 3 hops away. 0/24 route to Tunnel-A and assign it the production virtual network. This has worked, but in a large scale if another customer on the same Mar 9, 2021 · Docker’s networking setup interfered with the rest of my networking setup, including a local DNS server and subnet on 10. networks like to talk to each other for resource sharing while maintaining same IP addressing for some time. 256 - 248 = 8 so with that subnet mask your networks go up in 8. 64/25 as /27 should do if you don't have more than the number of IPs the class can provide. This interference was likely caused by Unraid overriding the default Docker subnet. Use a computer to ping the ip address while the laptop is powered off would be a good start. To avoid conflicts, you should choose a non-overlapping IP range for your VLAN. • 1 yr. Add a subinterface fa0/0. I have created two network objects with NATED addresses and using that one as encryption domains in the vpn setup. C1841-> two interfaces. Use the IP range that your ISP gave you on the outside interface and use a private address range like 10. 50 - 192. Dec 9, 2021 · Since IP addresses must be unique within each network or routing domain, these duplicates cause unstable network access into and out of the overlapping areas. VPN Overlapping Networks: The Problem. x /24 on fa0/1. 16. So you need to adjust the vlan 10 mask or get vlan 602 completely out of the address space covered by vlan 10. x. During onboarding of on-premise networks to connect them to the cloud Apr 17, 2015 · 3. For the client who has overlapping networks, you can't have both 192. How IP Address Groups Work IP Control Protocol (IPCP) IP pool processing implements all IP addresses as belonging to a single IP address space, and a given IP address should not The travel router is a good idea. 19. Overlapping IP address ranges can cause significant problems for companies that merge networks after corporate acquisitions, or for Managed Security Service Providers (MSSPs) who are bringing on new clients. Note: Reddit is dying due to terrible leadership from CEO /u/spez. X addressing scheme with a /24 subnet and my building utilizes the 192. In this case, the correct naming convention can resolve the ambiguity and bring an additional layer of visibility for end users over what Apr 3, 2017 · If by the "DMVPN" cloud you are referring to the actual tunnel interfaces IP address, you can use a VRF to have the tunnel´s ip address on an isolated routing table from the actual LAN, this would allow you to haver overlapping addressing between the DMVPN cloud (WAN) and the actual LAN: Look on Cisco documentation for the "tunnel VRF" command. Here are some of the common scenarios: Your organization acquires another enterprise and their cloud’s IP ranges overlap with your existing cloud networks. 254 so your network will be the same. x keep the same mask as 255. Basic config on R1, H1 ,H2 and R2 Devices –. 0/24). May 16, 2023 · The check for duplicate addresses means that you can configure pools in multiple groups that could have possible duplicate addresses. 1. May 4, 2010 · after a take over, but both networks are with overlapping IP address range, both. ERROR: could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network. eth0 192. 0/20 in the diagram) and then add a second IP address range to each VPC that is non-overlapping. Discovering When the Problem Exists May 5, 2021 · Greetings all, I am currently looking at deploying two Cisco Meraki firewall/router combos between two of our networks. 0/24, which is completely contained in the first range. This will open the “Run” dialog window. For example: The empty string means the "global" or "default This blog post describes why CIDR IP ranges overlap happens in a multicloud or hybrid cloud environment. 0/24. Most operating systems have a command called ‘arp’ that can be used to match up MAC with IP. Oct 19, 2012 · Options. I’m doing a lab and I had to make 8 subnets for ip 172. vlan 10 covers 10. 168. 0/22 B. When you have a problem that give you some subnets (or ip addresses from which calculate subnets) and ask you to find. This feature should not be enabled or used for anything other than overlapping addresses. 99. This happens because the private RFC 1918 IP addresses used internally can clash with those used by other companies or on the public Internet. 0/24 in Tunnel-B. Dec 17, 2015 · Take the first non 255 octet and subtract from 256 ie. 0/24 for their internal network. Jun 8, 2017 · The problem with VTEP pools is the APICs. Oct 24, 2019 · 0. X addressing scheme with a /24 subnet mask. Overlapping IP addresses in the cloud is a common issue that can arise due to various causes. Aug 1, 2023 · For those, again an IPsec tunnel is established, and again we might have overlapping IP addresses. In the example below, there are two sites – Seattle and Denver – connected with a VPN tunnel between R1 and R2. ago. 23. 12 falls within that range. start docker /all your services before the VPN => probably not practicable in all cases. See full list on aviatrix. 12. 0/18 D. for a cloud with real IP range as 192. The scope is a simple string with specific meanings for some values that are used by default. Your IP ranges are 172. 0/24 route and sends the traffic to VPC-B Transit The IP Overlap Problem. The IP address ranges of each of your VPCs must not overlap when peered or connected via VPN. For example: Interface IP Address Subnet Mask. You must also have a way to allocate private IP address ranges when needed. Why Overlap is a Problem An overlapping IP address is an IP address that is assigned to more than one device or logical unit, such as an event source type, on a network. 0 thru 10. It is possible to allow communication between two overlapping networks without having to renumber any devices by using Network Address Translation (NAT). May 8, 2023 · For example, if I am not mistaken, 1. The IP Overlapping Address Pools feature should be used only in cases where overlapping IP address pools make sense, such as Multiprotocol Label Switching (MPLS) Virtual Private Network (VPN) environments where Nov 19, 2012 · Example 3232235896/30 ==> (actual IP 192. I am needing to create a site-to-site VPN to these buildings. And 12 is not a multiple of 8 so that cannot be the subnet. x subnet on internal interface. Enterprises may intentionally design their network infrastructure As you can see the range of ip address in the interface G0/1 is included in the range of ip address in the interface G0/0, for that reason, you can see the "overlap" message. Iulian Vaideanu. Yeah, that makes sense. 2. Benefits; How IP Address Groups Work; Benefits Oct 29, 2020 · Hello @AlfredoBarbaGarcia60711,. I have a building that utilizes the 192. ” Table 22-4 VLSM Overlap Practice Problems An overlapping IP address is an IP address that is assigned to more than one device or logical unit, such as an event source type, on a network. 0/24 and 10. If any have the same result, then they are overlapping networks. 0 -class C, the problem will go away. The Problem. When a NAT device detects a new, outbound flow, it maps that flow's source port and IP address to another source port and IP address. Main VPC use case is network isolation, so if you plan accordingly there’s no problem with overlapping CIDR If you have an issue peering many VPC together, then perhaps the issue is having many VPCs in the first place Of course, more details would be needed on the use case before specifying my answer :) 9. 192. 0/24 in your inside network Oct 8, 2014 · That is, the range of addresses in one subnet should be unique compared to all other subnets. '. cpl and click “OK. In other cases, even organizations with well-planned IP allocations have faced this situation when IT has to merge resources associated with . I get a overlapping ip on giga interface 0/0. ”. Note: The internal host must initiate the connection to the external host by the domain name, rather than by the IP address. It causes an overlapping because, according to the subnet mask: The problem can be circumvented, however, with clever use of Network Address Translation. 02-08-2017 11:11 PM. 128) for the first network, and 192. Any machine on the same layer 2 network can look it up. bf db qj zh dv jv te qh he uk