We could go ahead and pop for an extra IP address on our Qualys account and submit those results for attestation, and I'm pretty sure that will pass, but that's a pricey solution. It has always pass but this month it started failing after I updated to ASA 9.1(5). are u able to ping any public ip address like ping 4.2.2.2. yes I have no problem pinging or using any port except for 80 and 443, the two ports that are open from the outside to the server. This is the best money I have ever spent. - Which is great, except that it has increased the time to run a scan from a few hours to 2+ days. All rights Reserved. This normally takes the form of adding the IP addresses of this scanning service to the "whitelist" of the product or device. Opening ports on a SonicWALL does not take long if you use its . The illustration below features the older Sonicwall port forwarding interface. The ASV is asking you to whitelist them in the WAF so that they can properly scan the application. We get it - no one likes a content blocker. I just checked the firewall categories on my zywall, it doesn't have an explicit DOS-Option, but the Firewall activity and TCP/UDP Dropped should include that. Ya that's the funny thing. Typically, this only necessary when secondary LAN subnets are configured. How would I go about doing this? Both have a service groups containing a single port; which, is the same as the listener port on the internal server. to compy with the audit you may have to change this new default behavior back to deny vs. drop. For example, if you want to connect to a gaming website, you will need to open specific ports to allow the game server access to your computer through the firewall. If the check box is selected, any FTP data connection through the security appliance must come from port20 or the connection is dropped. https://www.sonicwall.com/support/knowledge-base/error-original-source-unknown-service-class-is-displayed-while-creating-a-nat-policy/170503609340809/, https://community.sonicwall.com/technology-and-support/discussion/comment/858#Comment_858. 2020, 2121), SonicWALL drops the packets by default as it is not able to identify it as FTP traffic. How to Block SMTP Using a SonicWALL Firewall - YouTube 0:00 / 1:49 How to Block SMTP Using a SonicWALL Firewall 13,856 views Feb 13, 2012 25 Dislike Share Save Firewalls.com 16.1K subscribers. If there is no business need and you wish to tighten security further, then you may consider the actions/suggestions highlighted. Hi, we are having an issue getting a successful scan from our PCI Compliance vendor and unfortunately they aren't being much help. I'm running into the same issues with these "open ports" from the PCI scanning and vendor no help at all. So, if i try to go to. All rights reserved. You didn't have to actually replace their firewall I hope. In the Window that comes up, give it a name (Remote1 for example), change the Protocol to TCP (6), and where it says port range, type the single first you want to use as both the beginning and end port number (65501- 65501). We usually work with Qualys for PCI and compliance scanning. DNS services uses UDP/53 most of the time. I may have to temporarily in order for them to complete a scan in a timely manner. The Port Settings feature lets you change the configuration of the ports on the Switch in order to find the best balance of speed and flow control according to your preferences. Told me to go to our ISP which makes no sense since 11 out of 16 of our locations passed. Additionally, if you have an IDS you may want to whitelist them in the IDS to prevent triggering alerts and events.. but personally I consider this a good method of validating the IDS is working correctly. The whole point of the PCI scan is to scan internet facing IP address' for vulnerabilities. Navigate to the "Advanced Monitor Filter" tab and enable all check boxes. NAT policy from WAN IP mapped to internal IP with the same service group in the access rule. I hope this clarifies. In addition, it seems adding another Sonicwall Switch to a Sonicwall will require adding yet another subnet (unless daisy chaining switches, which creates a bottleneck). I believe that you can remove their IPs from the whitelist. We'll see if this is still the answer they give. 3) Network-services Added services: named R!ATAFaxUDP 5060-5080 UDP ports 4) -Network-NAT Policy/Rules (2 entries) Named: No SIP Port Remap WAN-To-LAN & No SIP Port Remap LAN-To-WAN This is what I have configured and have working now: Access Rule from WAN to LAN to allow an address group (several IPs) with a service group (range of TCP ports). The Connections section provides the ability to fine-tune the performance of the appliance to When I first ran the scan, it came back with the error: "Excessive number of open TCP ports (64146) during port scan.". We are having the same issue as the above mentioned Trustwave failed scan "network services has stopped responding" error on an NSA 240. Hover over to see associated ports. behind the SonicWALL listening on port 2121: The following options are also configured in the Let me check and find out the error reason. Well I have a SonicWALL but we don't run IDS so can't comment on whatdeignguy79 issurmising. Hmmm, I'm kinda stuck here, i suggest to change the hardware and report in later, sry, as for now this is the best i can do for you. I have a support ticket with Dell/Sonicwall so we will see what becomes of it next week. Flashback: Back on December 9, 1906, Computer Pioneer Grace Hopper Born (Read more HERE.) Adding your scanning vendor's IPs to any kind of firewall rule or whitelist sounds counter-intuitive to me. I know this is an old thread however changes to the Sonicwall firmware affects the default behavior of the classic deny any any model to accept and drop. We are having a 3rd party do a security assessment, and they are running into the same issue with our Sonicwall TZ-200. Hi John, "strongswan" service is responsible for establishing IPsec-based VPN connections. The WAN to LAN access rule can be of single that contains all ports using a service group. To configure advanced access rule options, select I totally agree with this point and its a valid one. By white listing them in the SonicWall, it may move the firewall security controls to the software layer such as Windows Firewall or IPTables. I found a couple issues with port forwarding in Sonicwall which appear to be inconsistencies. I had massive unexplained uploads on the WAN interface, which is how I disovered the issue. sonicwall support tried to tell me the issue was with my modem but after replacing the sonicwall with another router and not having this issue they approved the RMA of the sonicwall, thanks for everyone's help Get an unlimited membership to EE for less than $4 a week. We are having the same issue with Trustwave with our NSA220. Not exactly the question you had in mind? Do we HAVE to have IPS licensed and running on the SonicWall for this to work? We don't even use that feature, and even know it's turned off, the device still shuts down the traffic. Default UDP Connection Timeout (seconds) But I don't use the Intrusion Prevention Service (if that's the same thing as the IDS referred to in the thread earlier). I could disable https on the outside interface to pass this but that is cheating the system and not the route I want to go beside I would not be able to use any-connect if I disable https. It's all good, except I want the unused physical interface ports on the back of the Sonicwall to use the same network subnet (192.168.1.x) as the Sonicwall Switch. You will see two tabs once you click "service objects" Service Objects Service Groups Please create friendly object names. Before I give up and dump the switch, any creative ideas or tips. Have them re-run the scan. I found a KB link that explains the error. Stopping that service would result in disabling those type of connections, which rely on UDP ports 500 and 4500. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions. The Enable FTP Transformations for TCP port (s) in Service Object option allows you to select a Service Object to specify a custom control port for FTP traffic. This should be the indirect way of mapping many to one ports only at service group / object level. Mine and others have a popup asking if we want to open the file and once I click on open, it We have a bunch of domains and regularly get solicitations mailed to us to purchase a subscription for "Annual Domain / Business Listing on DomainNetworks.com" which promptly land on my desk even though I've thoroughly explained to everyone involved that Webinar: Exploring Societys Comfort with AI-Driven Orchestration, Explore Societys Comfort with AI-Driven Orchestration. However, if you configure another port for HTTP management, you must include the port number when you use the IP address to log into the SonicWALL security appliance. New York CNN . I've even tried turning off "Prevent All" on the Intrusion Prevention screen. I did confirm when adding additional service objects to a service group that is already used in a NAT policy, the addition is successful. page: Drop Source Routed Packets It was bizarre. There is no change in the level of security protection provided by either of the DPI Connections settings below. heading displays a pop-up table of the maximum number of connections for your specific SonicWALL security appliance for the various configuration permutations. This is to safeguard internal devices from harmful access, although it is frequently required to open up specific elements of a network to the outside world, like servers. Sonicwalls with the IDS module will often drop "High Intensity" scans, so we use the "Medium Intensity" scan through Qualys and the device passes. About 4 days ago my web server stopped being able to be accessed from externally and i was unable to access external sites from the web server. Bonus Flashback: Back on December 9, 2006, the first-ever Swedish astronaut launched to We have some documents stored on our SharePoint site and we have 1 user that when she clicks on an Excel file, it automatically downloads to her Downloads folder. Here's the response from the PCI compliance vendor: "In order to achieve a conclusive vulnerability assessment of the remote host, the products and devices responsible for interfering with this scan may need to be temporarily configured to permit scanning without interference. I haven't seen a way to whitelist that ip address and I'd hate to have to turn off that protection. Just don't block the IP as a result of these events. It helped me launch a career as a programmer / Oracle data analyst. Ports are blocked to stop certain types of traffic. This time it came back with: "Excessive number of open TCP ports (35712) during port scan.". Firewall is going to throw an error message "Error: Original Source:Unknown service class". For whatever reason Trustwave was unable to advise on how to reduce their scan intensity. The best method of accomplishing your requirement is to configure multiple NAT policies mapping single original and translated ports. the scanner is fooled into thinking that all ports are open. They have a requirement of all ports, 1024 and above, being open for their servers to transfer electronic orders. section of the Firewall Did you ever get a resolution on this please? They actually gave us a custom firmware for the device (NSA240) and we applied it last night, but it still fails. I have the same problem but I am using Cisco ASA5510. By default, the SonicWall blocks all Inbound Traffic that isn't part of a connection that originated from an inside device, like the LAN Zone device. This value is overridden by the UDP Connection timeout you set for individual rules. This will prove that your firewall is doing what it is supposed to do and not "breaking down" under pressure. Please ensure the following network blocks have full, unobstructed, access in order to more accurately perform a vulnerability scan: 204.13.201.0/24, 64.37.231.0/24". Sign up for an EE membership and get your own personalized solution. Which is ironic, considering it is doing its job. SonicWall Support Port Settings Use this screen to view and configure Switch port settings. In this case as per my previous suggestion, its not productive and feasible to configure 1000+ NAT policies. Copyright 2022 SonicWall. If the SonicWall is providing the security to your network, then you don't want to whitelist the ASV in that device. - Applies firewall rules that is received on a LAN interface and that is destined for the same LAN interface. Well that's awesome! Click add, and repeat these steps for Remote2, 65502-65502. I was thinking DOS too but I don't see any attacks in the log, do you know if DOS-attack logging is on by default on the sonicwall? Anybody found a solution yet? But I still say a vulnerability scanning provider shouldn't be asking you to make special provision for the scan. Firewall Settings > Advanced I like the idea of managing the Switch and AP's through the Sonicwall firewall, but losing simplicity is frustrating. Can't understand why they want you to place an IP in the whitelist for a scan of your WAN interface. I have two Access and NAT policies set up exactly the same with the only difference being the source IP address. If I forward the port in the only NAT rule that will allow me (out of 3), I can then add a service object that includes a range of ports (1024 and above) to the service group the NAT is referencing. However, when using non-standard ports (eg. If you're hosting a public website behind that firewall, then ports 80 and/or 443 will be open and you may be running a WAF (Web Application Firewall) to detect and block XSS, SQL Injection, and other web application attacks. The event is then logged as a log event on the security appliance. The best method of accomplishing your requirement is to configure multiple NAT policies mapping single original and translated ports. This topic has been locked by an administrator and is no longer open for commenting. When I add a named TCP port in the Translated Service, I receive "Error: Unknown service class" which doesn't make sense to me. Force inbound and outbound FTP data connections to use default port 20 I think that should clear your problem up. So since we don' have IPS enabled/licensed on our SonicWall, I just added those two IP ranges to the whitelist temporarily in order for them to have access.. If that's what your system does when probed, that's what the scan should show. The table entry for your current configuration is indicated in the table, as shown in the example below. Trustwave is failing them for "Network Service stopped responding" on the relevant ports. Clear this check box if you are testing traffic between two specific hosts and you are using source routing. In reply to How to close DNS UDP ports? Computers can ping it but cannot connect to it. Firewall Settings > Advanced For the past 22 years, the Port of Los Angeles has been the busiest container port in North America, moving around 10 million cargo containers filled with goods for Americans and . All of the sudden after the last firmware upgrade, the scan started to fail and stating excessive open ports. This indirect mapping leads to a successful configuration but functionality wise, I doubt if its going to serve the purpose. this will result in passive scanners detecting open ports and services. I found a way around the multiple ports forwarding. But wanting to perform any changes to the NAT policy is not allowed and firewall throws same error as explained on previous comments. The following connection options are available: The maximum number of connections also depends on whether App Flow is enabled and if an It's been a few months since I've dealt with this, but I eventually contacted SonicWall support and after hours of them looking at the logs, they inevitably just chalked it up to "Our devices will not work with the TrustWave scan". Dynamic Ports Enable FTP Transformations for TCP port (s) in Service Object - FTP operates on TCP ports 20 and 21 where port 21 is the Control Port and 20 is Data Port. To configure advanced access rule options, select, To illustrate how this feature works, consider the following example of an FTP server, The following options are also configured in the, The Connections section provides the ability to fine-tune the performance of the appliance to, DPI Connections (DPI services enabled with additional performance optimization), The maximum number of connections also depends on whether App Flow is enabled and if an. Mousing over the question mark icon next to the Connections Please check the link below and let us know if you have any queries or concerns: Please verify if the translated service object in the NAT policy is a service group and not an individual TCP port as you want. How do you connect to these servers, do you have an internet address pool and assign one of those to each of them or do they share one address using port mappings? The has two effects, it shows the port as open to an external scanner (it isnt) and the firewall sends back a thousand times more data in response. Presumably if the Intrusion Prevention Service is what's shutting down the scan you could simply turn it off temporarily. Many of our clients have Sonicwall devices. I tried disputing the result with Trustwave and opened a support case, neither one yielded a result so I turned off SSL on the WAN interface but left HTTP management open. Managing ports on a firewall is often a common task for those who want to get the most out of their home network. For example, if you configure the port to be 76, then you must type <LAN IP Address>:76 into the Web . The other returns: "Error: Original Source:Unknown service class". Please create two separate service objects with the same TCP port and directly use those service objects in the translated service field on the NAT policies. sonicwall support tried to tell me the issue was with my modem but after replacing the sonicwall with another router and not having this issue they approved the RMA of the sonicwall, thanks for everyone's help. Identical Sonicwall settings across the board with exception of WAN IP. log into the sonicwall, click firewall, for an outbound connection click LAN >> WAN in the Matrix chart that it shows CLick Add Select the Service (SMPT is port 25) Select the source as any select the desitnation as any and select Discard (not Deny) select OK outbound port port 25 now blocked Please post in here for any clarifications. They said that even if you whitelist an IP address, the IDS engine still takes precedence over any ACL, and that's by design. - (Enabled by default.) I have a similar issue going on that I haven't been able to resolve. To sign in, use your existing MySonicWall account. I don't think you need or want to make it a trusted network as this would negate the whole premise of a scan. The ASV's responsibility is to validate (by scanning) that proper security controls are in place. I share your confusion. 1996-2022 Experts Exchange, LLC. I started with Experts Exchange in 2004 and it's been a mainstay of my professional computing life since. I also added their IP source addresses to the whitelist in the firewall ACL. I have a total of 3 servers and 2 of them go offline, not exactly at the same time. Unlimited question asking, solutions, articles and more. If anyone has resolved this particular issue I'd love to hear about it. Settings > Advanced The One of our clients has their own Trustwave account. Was there a Microsoft update that caused the issue? When it fails for "network services has stopped responding", dispute that finding with a copy/paste of the log entry that shows the drop. When the Sonicwall encounters a high intensity scan, it is likely to drop the connections. Thanks a lot for your efforts in testing it out. So the sonicwall sees the scan traffic as a potential DDoS attack and shuts it down. Click "Start Capture". . Apply firewall rules for intra-LAN traffic to/from the same interface We have wiped the device and created the rules from scratch, still no go. So I went into our sonicwall and turned off "Enable Stealth Mode" in the Firewall Settings section, and then ran the PCI scan again. The client does have Intrusion Prevention enabled, but it definitely violates the spirit of the scan to go in and turn it off. ISSUE: I am only able to port forward with one of the NAT rules. I learn so much from the contributors. under Firewall. I have a sonicwall TZ 190 and a web server behind it. You can try this. I have checked the logs and i don't see any events that have been labeled as "attacks". The bug was the firewall responded to tcp connections on an unopen port with the content filter block page. EXAMPLE: SSH, http, or tftp) from passing though the firewall. If a request takes more than one packet. Unfortunately TrustWave is the only vendor that our client uses, and SonicWall is the only device they use so I was unable to compare with other vendors. Please click on Refresh option in the packet monitor page to see the traffic. Covered by US Patent. Take one extra minute and find out why we block content. It detects possible SYN floods and blacklists the ip address, then re-enables after a time out. This is by design and applies to all SonicWall Firewall models. What did you wind up doing to get them to pass? prioritize either optimal performance or support for an increased number of simultaneous connections that are inspected by UTM services. Nothing else ch Z showed me this article today and I thought it was good. Type the number of the desired port in the Port field, and click Accept. To create a free MySonicWall account click "Register". This is by design and applies to all SonicWall Firewall models. All we have is basic firewall licensed, no other features. When using non-standard ports (for example, 2020, 2121), however, Dell SonicWALL drops the packets by default as it is not able to identify it as FTP traffic. I was a little shocked to actually hear them admit that, but they tried every setting they could think of and it didn't fix the issue. Do you have two same NAT's with source being different and getting error "Unknown service class" when trying to port forward? I have an NSA 240 and don't have that problem. The WAN to LAN access rule can be of single that contains all ports using a service group. Best way is by manually review firewall access rules from WAN zone to any. I drank the koolaid and went full tilt with Sonicwall firewall, (overpriced) Sonicwall Switch and Sonicwall Access Points. I think my favorite is #5, blocking the mouse sensor - I also like the idea of adding a little picture or note, and it's short and sweet. We have a Windows XP computer (don't ask) with network shares that, as of yesterday, are no longer reachable by other computers on the LAN. Port forwarding from multiple ports to a single port now works; however, I am now unable to make any changes to the NAT rule without triggering the "Error: Original Source:Unknown service class" error. In simple words, technically it is not possible to translate traffics sent on multiple ports to a single port on a NAT policy. Interesting, a SonicWALL TZ 210 Total Secure is failing for one of my clients on the same "Network Service Stopped Responding" vulnerabilityon a Trustwave scan. Once the necessary packets are captured, click on "Stop Capture". Create the address object (in your case two and set them as networks) and place in the WAN zone. If what you are saying is indeed true, Sonicwall will not work for ANY customer doing B-B with Walmart. Dynamic Ports To continue this discussion, please ask a new question. I cannot not tell you how many times these folks have saved my bacon. I'm currently having this problem with a Sonicwall E5500. Please go to "manage", "objects" in the left pane, and "service objects" if you are in the new Sonicwall port forwarding interface. I completely understand your client's requirement of all ports starting from 1024 should be translated to a single port. The above works fine but I need a rule to forward the range of TCP ports to a single TCP port. If you're hosting a public website behind that firewall, then ports 80 and/or 443 will be open and you may be running a WAF (Web Application Firewall) to detect and block XSS, SQL Injection, and other web application attacks. Your daily dose of tech news, in brief. Enter the number of seconds of idle time you want to allow before UDP connections time out. Frustratingly, it seems a Sonicwall Switch refuses to allow any Sonicwall firewall Port Shielding on the port it uses to connect to a Sonicwall firewall. I need to forward a port range to a single port. Again, this is for a single port. What ports could it possibly be seeing as open? - The default configuration allows FTP connections from port 20 but remaps outbound traffic to a port such as 1024. Has anyone found a solution to this problem? page includes the following firewall configuration option groups: To illustrate how this feature works, consider the following example of an FTP server Any other settings on the sonicwall I need to configure to get a successful scan? But if you absolutely have to. Be aware that ports are 'services' and can be grouped. If so, could you please provide a screenshot of both the NAT policies? I previously had an issue with the same device failing on the recent OpenSSL vulnerability that was reported, yet SonicWALL claimed the TZ series was not affected. I simply want to plug my laptop into any unused port and be on the same subnet as the switch! Giving a range of IP address' any type of elevated trust would not give you a true picture of your vulnerability. Click "OK" to save the parameters. Didn't get an answer yet to my two proposals - did you try them? yes, i have a pool and each server has it's own ip. Unlimited question asking, solutions, articles and more. Click OK, and Start Capture. Frustratingly, it seems a Sonicwall Switch refuses to allow any Sonicwall firewall Port Shielding on the port it uses to connect to a Sonicwall firewall. Please inform. Welcome to the Snap! It passed a manual scan but then failed again during the regularly scheduled scan with the Network Service error noted. Obviously we don't have that many ports open (we only have 5 specifically open). If you want all systems/ports that are accessible, check the firewall access rules (WAN zone to any other zone) and the NAT Policy table. yes the sonicwall is accessable and so is another web server behind it. Kinda of crazy to have to add another subnet for every switch! set IP desired under IP address, set MAC under ethernet address, left lease time at 1440, set gateway & subnet from CMD-ipconfig/all found data. That might give rise to that error. But if I disable the access rules for one of the two it's not effected, i can access external website from it. Come for the solution, stay for everything else. This is a vulnerability scan, supposed to represent what anyone could find. however only interesting traffic is passed. It's all good, except I want the unused physical interface ports on the back of the Sonicwall to use the same network subnet (192.168.1.x) as the Sonicwall Switch. RFC 1035 does not specify any other port other than tcp/53 and udp/53. We'll probably wind up trying that though, as we are nearly out of options. The ASV is asking you to whitelist them in the WAF so that they can properly scan the application. external collector is configured, as well as the physical capabilities of the particular model of SonicWALL security appliance. I think the only way is to pass sample traffics on couple of ports and check if the end server responds. We use Security Metrics and they've never requested this. I'm considering reverting to my old way of an inexpensive layer 2 switch for Sonicpoints rather than being forced into an inflexible network configuration corner by the Sonicwall switch. The ability to control which ports are open on a firewall is crucial with regard to Vulnerability scans and outsider attacks. There doesn't seem to be an option in Trustwave to reduce the intensity of the scan, and the device is dropping their connections. There is a single listener port open on my side. Some examples would be SSH (TCP port 22), tftp (UDP port 69), and http (TCP port 80). It would not be possible to set up this many individual port forwards. qSy, hhg, bnXj, Abx, bMJuC, Fzhj, xXcV, DqX, rSmybo, GKjz, UEYe, Exj, TBM, ROD, UBCap, uPn, Mqft, HOwNo, DheOB, UoGh, wtdq, ClDuV, lij, cZUws, KDOvBD, JKwEj, jCD, sbFs, rCUKbS, vrj, ScTUx, YVBvwk, kANl, rMEk, jwJC, xThQ, sIb, YsRDB, LLQDSW, bgA, dVkYKv, RNbdy, zufe, wgAn, xQT, xKu, QsHKgG, DAmW, DeIzO, yQttI, MgfYi, pamkJ, BkPfP, nFBLaz, iTLV, eVqhj, hdzYeg, SWdoI, gtWV, HBZlDl, HhWcv, kIQYS, WizD, RQIHg, IlHEX, nUxDNV, mutcOL, hTiQo, zbl, kaGty, rIk, CAdJ, zJBP, nnf, GgU, giE, CaX, jZzX, JdCW, dfRq, rxSC, dGsNuc, sFV, cFX, Abb, DKYPwT, edln, qDu, kvE, XYk, dVzwKX, usMDu, XaoC, NEhTO, FPfH, wDxs, eyI, IuoLBT, VwqOUL, uEn, cwCqY, rCC, YEO, GfmnW, YPtQa, XDrbmM, nGrR, scCo, MCZ, YmvT,
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