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Just wondering if anyone knows what needs doing on the tills if we change the cashless catering server address? Can't be that difficult but don't want to miss anything. Contacted Civica about changing server IP address and they want £1652 +VAT to change the 3 tills that we have! I have asked them to justify the cost in terms of number of days / engineers on site and they haven't responded. TIA Neil

Need some advice folks! Got a few Surface tablets in school that are running windows 8! ive ran all the windows updates apart from windows update 8.1 from the app store. when i go to run this update it fails, long story short our authority have web filtering in place and we think that either that or the firewall is blocking access to this update. we need to find out the ip address / dns name of the address that this update app program is trying to contact out on. ive downloaded sysinternals "TCPView" program and tried to run the "Tcpvcon" command line to export to a csv file but no luck can anyone else give me any advice to any other program that will record and log to a file what address a program will try and contact out on. thanks

Hi All Talk Straight/Schools Broadband has recently made a massive change to their IP ranges and are now using IP range blocks that are assigned to Romania. We have seen issues with a few services we use and I wondered whether there was anyone else out there that have noticed service issues based on their IP address being Romanian!

Hello. we use Comodo Antivirus for Linux in a network with limited internet access. Only whitelisted addresses are allowed. For enabling Comodo to get updates, I therefore need the IP address or Domain name that Comodo uses for its update. Does anybody can help me? I didn't get any answer from Comodo so far... Thank you very much in advance, Martin

Hi, I'm sure I'm missing info from my problem - please ask if I am. We have a scope, 10.212.x.x, giving out addresses 10.212.1.x - 10.212.4.x We can ping the gateway (10.212.1.1) from 10.212.1.x, 10.212.3.x, and 10.212.4.x clients, but NOT 10.212.2.x. Here's the vlan as defined on our Cisco core: interface Vlan212 description Guest Vlan ip address 10.212.1.1 255.255.0.0 ip helper-address 10.1.200.60 ip helper-address 10.1.200.66 no ip redirects no ip unreachables ip flow ingress end Where else can I look for issues? Note, if I put in an exclusion into our DHCP server that prevents 10.212.2.x addresses from being handed out, clients the previously received one no longer get any IP address. Thanks!

Hi, We just recently added 60 netbooks to our network...it seems, now, we have run out of ip addresses. What do we do? Bearing in mind we are assigned an IP range by our local authority. J x

Hi All, I am in an interesting situation where I am trying to expand my Ip range with Rm Networks. We currently have an ip range set to: 10.141.80.0-10.141.81.254/23 (255.255.254.0) The ip range has been increased to 10.141.83.254/22 (255.255.252.0) Rm Networks says the router is set up with /22 subnet but my dhcp server is set up with /23 (255.255.254.0)subnet I have created another scope with the below: 10.141.82.1-10.141.83.254 /23 but it is not working. we are using a Windows Server 2019. I reserved one of the ip address to use the newly created scope ip address but it was connected to wi-Fi but was not connecting to any of the websites or apps. I would like to use the scope settings if possible 10.141.82.1-10.141.83.254 /23. It should be possible if the dhcp server is working fine with 10.141.80.1-10.141.81.254 /23? Any help or advice is much appreciated as I don't want to lose any reserved ip setting while changing any of the settings. Thanks in advance.

Hi, I would like to find out how other schools are tackling the following problem. We have been blocking IP address browsing for a while now due to having a large number of infections coming from websites using IP addresses as opposed to URL's. All of these websites seem to impersonate "My Computer" for Windows XP and make you think that your PC is infected and usually install an infection which poses as an antivirus. We are using Bloxx Web Filter which has an antivirus built in (I can't remember which one it uses) and Symantec Endpoint Protection and neither of them were catching the infections. I spoke to Symantec on a few occasions and their answer is always "download this tool and it will remove the infection for you". But if that's the case, what's the point in having Symantec Endpoint Protection if it doesn't stop infections and instead I have to download a tool and manually remove the infection every 5 minutes? I've also spoken to Bloxx and they just ask me for the address so they can add it to their URL database. But there are so many of them and it wouldn't surprise me if they are continuously changing their addresses, so this isn't going to help much. The problem we have now is that websites such as BBC iPlayer and S4C Clic stream all of their media from IP addresses. So staff are now understandably unhappy because they can't access videos they want to use in their lessons. I agree that they should be able to use these two websites in particular (maybe some others too). I thought of simply unblocking the specific IP addresses used by these two websites, but first of all I don't have a list of them (and neither do Bloxx) and second, even if I can get hold of a list I don't know if or how often these addresses are going to change. This isn't going to be any good if teachers are planning their lessons around these videos only to find that on the day the IP's have changed and the videos are blocked again. So my questions are: 1) Is anybody else having/had the problem with these viruses coming from IP based websites? (I have seen similar websites using URL's but the majority seem to be IP addresses.) - a) Do you have a solution for this problem other than blocking IP addresses? 2) Is there anybody blocking IP addresses with a solution for allowing BBC iPlayer and S4C Clic? 3) How many schools are blocking IP addresses? Are we part of a small group or do most schools do this? 4) Does anybody have any other tips or advice? Thanks in advance, Daniel

Hi all! For the last few weeks some of our windows 7 laptops appear to be getting a random default gateway. Our set up is as follows: Router: x.x.12.1 (managed by our ISP) DHCP & DNS server: x.x.12.10 Some clients are randomly picking up x.x.12.80 as the default gateway. Their network settings are all set to DHCP and auto. They still have internet connectivity on this address but no access to our shared drives/SIMS server. There are no entries in the DNS or DHCP for this .80 address, and NSlookup does not resolve it to anything. Any thoughts/ideas would be greatly appreciated! Thanks

We have set up a cluster file server on 2 blades running Server 2008 R2 Enterprise. I can access the file shares on the cluster using the cluster name, eg \\clustername\share, but I am unable to access them via the cluster's IP address, eg \\x.x.x.x\share. Does anyone know how to resolve this?? Any help would be much appreciated.

Hi guys. Our school is running out of IP addresses. Currently we have 254 IP addresses. Our server runs on Windows Server 2008. I requested a bigger range of IP addresses from our network provider. They told me that they have changed the subnet mask from 255.255.255.0 to 255.255.254.0 and now we have 510 IP addresses providing I configure our end. Does IpV4 supports that amount of addresses or do I have to change to IpV6? I have never done this before and I just wonder how to do it.  Any help would be much appreciated. Thanks

Hi, We have 2 Brother HL-6050DN printers both connected to the network via Ethernet. One of the two printers suddenly stopped working back in November. You couldn't access its web interface, couldn't get a ping response and couldn't print to it. We started with all the usual troubleshooting for connectivity problems, but happened to notice that when you ping the printer instead of getting the expected response e.g. "Response from {Local IP}: Destination host unreachable." we were getting this: Pinging {Printer IP} with 32 bytes of data: Reply from {Printer IP}: bytes=32 time=3ms TTL=60 Reply from {Meru Controller IP}: Destination host unreachable. Reply from {Meru Controller IP}: Destination host unreachable. Reply from {Meru Controller IP}: Destination host unreachable. Ping statistics for {Printer IP}: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss) Every time you ping the printer you get one response and then the Meru WiFi controller responds with "Destination host unreachable". If I check my ARP cache I see the MAC address of the Meru WiFi controller for the printer's IP address. I contacted Meru support who asked me to send them some logs. I was told that the Meru controller has an ARP proxy feature but they were confused why it was responding for the IP of the printer (which is wired, not wireless) and were going to look into it further. Meanwhile we couldn't leave the printer out of action and got it working by changing its IP. As a test we then went to the second printer and temporarily put the "broken" IP address on it; It instantly stopped working with the same symptoms. For the next 3 weeks we carried on as normal and totally forgot about the problem. Then all of a sudden both of the printers stopped working again with the same symptoms. Meru support did some more investigating and eventually said that the IP addresses of the printers were being registered with the controller from the wireless interface (I.e. for a wireless client, not a wired client) meaning another client must be using the printers IP. They did mention that the controller should be flushing its arp cache to remove any invalid entries which it wasn't doing. They manually deleted the entries to get the printers working again for now. To give you a bit of background information; Our network used to be entirely DHCP with the exception of one small scope for servers, switches, pritners and iPads etc. Due to a requirement for a configuration we wanted with a previous web filter we then split the network into DHCP and static addresses. The 2 printers in question had their IP addresses changed so they were using one of the new static IP's. We have now recently changed our web filter and decided to go back to DHCP. As a temporary solution we left the printers on the same IP's and then created DHCP reserves for them (even though they are still statically addressed) to stop anything else using their IPs. One of the printers stopped working again yesterday morning. As usual we pinged the printer but this time got: Pinging {Printer IP} with 32 bytes of data: Reply from {Printer IP}: bytes=32 time=3ms TTL=60 Request timed out. Request timed out. Request timed out. Ping statistics for {Printer IP}: Packets: Sent = 4, Received = 1, Lost = 3 (75% loss) So I'm not sure if Meru have changed anything to stop the controller replying. Based on Meru suggesting a wireless client is using the same IP we then looked at the associated devices list on the Meru controller and actually found a client with the printers IP. The MAC address of the client told us that it was an apple device, and the associated AP told us roughly where in the school the device was. So thinking there was a problem with the DHCP reservation or something we checked all of the Mac Books and Apple TV's in that area but couldn't find anything with the MAC address we were looking for. This morning we noticed the MAC address was using a static IP which belongs to a staff iPad. We have checked the iPad and it's configured with a static IP; The teacher said the Internet stopped working on it yesterday (our DCHP addresses don't have direct internet access) but he hasn't changed any settings. So we are now confused why an iPad which has a static IP would suddenly decide one day to use a DHCP address (more importantly a reserved DHCP address) and then the next day go back to static. When you switch between static and DHCP the iPad forgets all of the static IP address settings, so the teacher would have had to re-enter them if he had changed it and he said he didn't. We're also confused why it only appears to be happening to the IP addresses used by these two identical printers and to our knowledge nothing else. Any help would be greatly appreciated.