Access Computer In LAN Outside Subnet Mask?
Jun 12, 2012
I have old interface hardware with Static IP 10.2.2.200 and on the same switch I have computers with IPs of 10.4.1.0 If I change subnet to 255.0.0.0 old hardware with 10.2.2.200 will be accessible. The problem is that I would like to have 255.255.255.0 as subnet but it should still be possible to access 10.2.2.200. Can I add Static route for oldhardware in XP without adding gateway settings? The most simple would be to put all on same subnet but it is not possible due to a various reasons. The computers are running Windows XP
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Sep 28, 2011
Have a problem with a laptop connecting to a Wireless Router. The laptop was working fine on the last router which was on an ADSL Network.. (not that that matters),When the new router (Virgin Media / Cable) was installed all other laptops where connecting to it without any probs, but not this one.The laptop in question still receives an IP address, Subnet mask and Gateway from the router - Vista says Local only, no internet access. It cannot ping anything else on the network either. When I do ping it comes back destination host unreachable.
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Jan 28, 2011
our subnet mask is 255.255.255.0....can I change it to something else like 255.255.0.0.
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May 8, 2011
what is subnet mask of 10.2.1.3/22
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Apr 27, 2011
why do class D doesn't have subnetmask
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Mar 6, 2011
I understand ip addressing and what a subnet is.But why is it sometimes I connect two things together,it always requires a subnet mask, and other times no? For example when I try to connect two computers together, it requires both IP and subnet mask.But if I use FTP software all it ask for is IP.Same thing when connecting to a website through their ip, doesn't require subnet.
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Jul 13, 2012
I want to calculate Subnet Mask for 3 Router Each one in separate building the First building need 60 host and the second building 25 host and the last one 25 host .
Knowing that the company currently reserved public class C network address 210.2.1.0/24 for internal address and subnet 210.15.10.0/30 for the connection to the Internet router.
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Feb 27, 2013
I am using TP-Link wireless router model no. TL-WR941ND.my isp provided static ip via cable modem.ip = a.b.c.d subnet = 255.255.255.254 = /31 but the router does not support subnet mask saying wrong subnet mask?
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Nov 12, 2012
I would like to set the subnet mask off the lan to 255.255.240.0 but the selection menu do not allow to do it.
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Nov 3, 2012
Given an IP address range, select the correct subnet mask for the scenario. IP address: 132.250.0.0/16, You need to create 100 networks with a minimum of 500 hosts per network. What is the correct Subnet mask and the 10th subnet address range?
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Apr 18, 2013
what my IP address, my subnet mask, and what my default gateway is. I have tried typing "ipconfig" into CMD but then I only got up 100 boxes saying "Permissionisconnected"
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Aug 22, 2011
I'm using my WRT320N as a home router, I need more ipadresses to be delivered to my computers, yet I can't get my router to give med wider netmask range. In the list I get 255.255.255.0 - 255.255.255.240 or something like that. I need 255.0.0.0 on my network and that would be perfect if i could get that...
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Jun 26, 2012
I want to use a subnet mask of 255.255.254.0. The setup window doesn't allow me to type in that mask, rather it only allows me to choose from options on a drop down menu (which doesn't include that mask). Is there a way to do this?
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Feb 23, 2011
subnet mask address is illegal cisco linksys?
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Aug 8, 2012
We have an ASA 5520, working fine.One of the interfaces is connected to users PCs and printers mainly. Last months the number of devices has grown rapidly, and we would like to make some changes in it in order for it to be able to host new devices.We thought on change subnet mask of actual subnet (10.0.2.0/24) to 10.0.2.0/23, so it can hold as many devices.I understand I have to make some changes in the ASA, but my question is:What will happend to the acces rules I have created?Will I need to create them again? There are some objects which carry information about subnet mask, so I suppose I will need to redefine them, but for those without any subnet mask information, will I have to redefine them?
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Nov 27, 2012
after recovering from the PPPoE-port-forwarding-fiasco I had with the RV180 (url...), I decided to try again with a Small Business Router from Cisco. This time I took the RV042G, hoping that the higher age of this product comes with a more mature firmware.So far the functions I need, work satisfying. There is only one issue: The subnet-mask is only configurable using a dropdown-menu. I've read the posts from the Cisco-Support staff saying, that this is because it is only a SMB Router. So, we are a small business and we use the 172.20.x.y net for several reasons. One of it is to distinguish and group several network devices using the third block of the IP. Eg. our printers IPs start with 172.20.5.x and so on.
My question is: Is it really impossible to change the subnet-mask dropdown-menu to a simple text-field in the frontend? Because it is possible to change the subnet to whatever one needs by a little cURL-magic: [code] This sets the new subnet-mask permanently (even survives a reboot and is displayed correctly on the system-status page) and I have not discovered any problems.The only thing is, if you change settings on the setup -> network page, the netmask is reset and you have to rerun this script.
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Dec 13, 2011
We have 10 ADSL lines and 5 of them goes in the load balancer (One gateway) and the rests are used as default gateways for internet access. We use ADSL routers as access points for internet, but those routers should be part of our network and should be given an address in order for them to act as default gateways for internet access. I'm facing a real prob with the ADSL routers Linksys WAG54G2 because they doesn't support a subnet mask 255.255.0.0 Any recommendation for an ADSL router model that support a netmask 255.255.0.0 ?
My cisco 2811 router interface configuration ip address: 172.20.0.1 255.255.254.0.Load balancer output lan ip address: 172.20.0.5.My ADSL routers will be in the following range : 172.20.0.6 - 172.20.0.10
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Feb 11, 2013
I have an ASA5505 which provides internet (just internet) for about more than 600 pc/laptops. Can 5505's DHCP support this number?
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Nov 1, 2011
Based on my diagram, my computer A (192.168.100.11) can ping and access my computer B (192.168.10.14). But, when i'm home and i use remote access vpn (192.168.200.x) in cisco asa 5520 to connect to my computer A is okay. But, when i try to ping my computer B is not okay. I already do the exemption for 192.168.100.x and 192.168.10.x in nat rules for inside interface (192.168.100.2) ...
Should i put routing from outside 1.1.1.2 to 192.168.10.x by using 192.168.100.1 as a gateway?
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Aug 23, 2011
One is my HOME the other is my CARAVAN SITE. both networks are working fine independently, the problem occurs when i join the networks togetherI need to connect the said networks together in order to view my IP cameras which are dotted all around the campsite, i need to be able to view these from HOME.The problems i am having is DHCP servers are stealing clients from the other sides and directing them to the wrong gateway.please see below network map (these routers are all running DDWRT)Below is another network map which someone on another forum told me to do but its still not working. (DHCP servers are still clashing and still stealing clients)by the way, on both of the network maps all routers are connected with the LAN interface. someone told me to connect certain routers with WAN and it didn't work, or it was not explained correctly.Also please note that assigning clients with Static IP's is completely out of the question due to most of the clients being campers who come and go.
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Aug 23, 2011
I have a problem with my 2 networks which are 1000 meters apart.One is my HOME the other is my CARAVAN SITE. both networks are working fine independently, the problem occurs when i join the networks together.I need to connect the said networks together in order to view my IP cameras which are dotted all around the campsite, i need to be able to view these from HOME.The problems i am having is DHCP servers are stealing clients from the other sides and directing them to the wrong gateway.please see below network map (these routers are all running DDWRT)if(GetCookie('computingnet_image') == 'yes') { document.write(''); }Below is another network map which someone on another forum told me to do but its still not working(DHCP servers are still clashing and still stealing clients)by the way, on both of the network maps all routers are connected with the LAN interface.someone told me to connect certain routers with WAN and it didn't work, or it was not explained correctly.Also please note that assigning clients with Static IP's is completely out of the question due to most of the clients being campers who come and go.
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Mar 15, 2013
I have setup my network with two subnets (192.168.0.x and 192.168.1.x) and have a number of clients on both.I am using a Vigor 2750n router as my 'primary' router, and have a Server 2008 machine running RRAS as my other 'router'on the 192.168. 1. x subnet.On the 192.168.1.x network I have a server running DNS for local queries on that subnet and have 8.8.8.8 setup as a DNS forwarder. On the 192.168.0.x subnet I use the google DNS 8.8.8.8.I have setup a static route between the two subnets and am able to ping clients between each subnet.With regards to internet access, I am unable to get access to the internet from the 192.168.1.x subnet (no problems from 192.168.0.x subnet) and am unable to even ping a web IP address, and am wondering if I need to make any changes to the 2750's configuration to allow traffic from the other one to get out to the internet.
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Jan 12, 2012
I have a server which has multiple NIC's.NIC 1 is connected to the network / internet etc.NIC 2 is connected to a NAS drive.Obviously I can access the NAS drive from the server, but how can I access the NAS drive from devices on the network i.e. on NIC 1?Is it possible to access the NAS from a different subnet?
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Mar 15, 2013
I have setup my network with two subnets (192.168.0.x and 192.168.1.x) and have a number of clients on both. I am using a Vigor 2750n router as my 'primary' router, and have a Server 2008 machine running RRAS as my other 'router' on the 192.168.1.x subnet.
On the 192.168.1.x network I have a server running DNS for local queries on that subnet and have 8.8.8.8 setup as a DNS forwarder. On the 192.168.0.x subnet I use the google DNS 8.8.8.8.
I have setup a static route between the two subnets and am able to ping clients between each subnet.With regards to internet access, I am unable to get access to the internet from the 192.168.1.x subnet (no problems from 192.168.0.x subnet) and am unable to even ping a web IP address, and am wondering if I need to make any changes to the 2750's configuration to allow traffic from the other one to get out to the internet.
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Aug 23, 2011
I have a problem with my 2 networks which are 1000 meters apart.One is my HOME the other is my CARAVAN SITE. both networks are working fine independently, the problem occurs when i join the networks together.I need to connect the said networks together in order to view my IP cameras which are dotted all around the campsite, i need to be able to view these from HOME.The problems i am having is DHCP servers are stealing clients from the other sides and directing them to the wrong gateway.please see below network map (these routers are all running DDWRTBelow is another network map which someone on another forum told me to do but its still not working. (DHCP servers are still clashing and still stealing clients)y the way, on both of the network maps all routers are connected with the LAN interface. someone told me to connect certain routers with WAN and it didn't work, or it was not explained correctly.Also please note that assigning clients with Static IP's is completely out of the question due to most of the clients being campers who come and go
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Jul 12, 2011
I am working with a device that does not have a physical reset button on it, and have mistakenly typed in 127.x.x.127 for it's IP. I was trying to use 172, but mistyped and didn't catch it until after I had rebooted the unit. Is there anyway that I might be able to gain access to the device. My PC is running Windows 7, but I am familiar with linux as well. I have attempted to change the loopback adapter IP to 128 on a ubuntu live disc and set my ethernet port to the subnet the device is on with no avail. (I am also using vlans on the device, but believe I have them set up correctly)the device is set to IP: 127.x.x.127 netmask 255.255.255.128. [code] I know that the last octet of 127 is the broadcast IP for the range, but have been able to address similar blunders before by forcing myself to a /24 subnet to correct that.
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Aug 19, 2011
I have an RV042 with the PPTP server configured, which is working because I can connect with my iPad and droid phones, however, I'm unable to access resources on the RV042 side (192.168.1.X) when my local network is the same ip scheme (192.168.1.x). It works fine when I'm on a different network like 3G or someone else's Wifi network (192.168.11.X).
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Dec 26, 2011
i have 2x 27 subet ( we will call first /27 fip and call second /27 sip) we assign sip subnet to our virtual machine and we do not want assign ip from sip to our physical node and we wan assign ip from fip subnet to our physical server, because we want sip can not spoof physical server ips, so when we create vlan in our switch we set port 1 and fip and sip subnet access to this vlan in this senario can my virtual machine spoof our physical node ip ? some one in my datacenter technical team told me we should create vlan for fip and create a seprate vlan for sip then set vlan fip and vlan sip access to switch port #1 is it right? if it is ok can some one give me the commands for this senario which create 2 spetare vlan and access them to port siwtch #1 for exaple? we have cisco 2960 48 port ,
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Oct 16, 2012
it is each wireless access point need to have different subnet, if 24 users connect at the same time? will it be slow down if 24 user put in the same network?
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May 24, 2012
Got a shiny new SG 200 26P which seems to work fine operationally.owever, when I am trying to access the web interface from a different IP subnet, the web brower just times out.If I put my PC on the same IP subnet, it works just fine. From the other subnet, I can ping the switch fine. The default gateway is set on the switch, and from the web interface I can ping and dns resolve other hosts and on the internet. I've tried to create a management profile to 'allow all from everywhere' basically, but still no luck.I'm completely stumped. I've tried to reset to firmware defaults, and I'm now runinng the latest firmware. I woudl suppose that the switch would allow itself to be managed via the web interface from all subnets by default. Any thoughts? The fact that the switch can ping internet hosts makes be believe it's own default gateway and IP are all ok and working.. (and I can ping it from anywhere in my network).
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Sep 7, 2011
First off, let me preface this by saying that I'm a novice when it comes to firewalls and more specifically, the ASA. I do however, have an above average understanding of switches/routers.
We have an ASA 5510 running 8.3 and recently I've decided to clean up the last admin's mess. All hosts and servers are on the same subnet, multiple subnets on the same VLAN... and a slew of other problems. Anyway, I recently placed the IT department on another subnet to test some things out before I migrated other departments to different networks. Everything seems to be working as it should be with the exception of one of our servers. The IT subnet is 192.168.150.0/24 and the problem server is on the 192.168.10.xxx network. I'm guessing the issue lies somewhere in the fact this server does have a static NAT and is accessible from the public. Let me give you an overview of what our network looks like:
ISP ---->ASA----->3750----->2960
My workstation is directly plugged into the 3750 switch, and the server is plugged into the 2960. I'm able to ping this server by both IP and hostname. However, I cannot access port 80 by IP or hostname. The users that are on the 192.168.10 and 192.168.11 (sadly both of those are on the same VLAN) network are able to access this server without a problem. Thinking logically, I thought I would send a packet from my workstation, it would head to the layer 3 switch's VLAN interface corresponding to my subnet, realize the .10 network is directly connected and then forward the packet straight to the server. However, it doesn't seem to be working that way. It look like it's being routed to the ASA then being dropped. I guess there's an access rule or firewall rule preventing me from getting to the server. Is there a specific part of my config you will need to see...
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Dec 7, 2011
I am working on a site that has recently added a new subnet and I am unable to ping any of the stations on this new network. I have configured an Exempt NAT rule just the same as the rules allowing access to other networks. I have a feeling the problem is in the Site-to-Site VPN configuration since the new subnet is at the primary location over the VPN.
In the site-to-site configuration I added the new subnet to the list of "Remote Networks" and I still can't communicate with any of the devices on the network. If I go to the main site I have no problems so it appears to be related to the VPN or a configuration in the ASA on that site.
A port scan shows that all the traffic is "filtered" so somewhere either the site ASA or the main ASA is blocking the traffic.
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Aug 24, 2011
I have an RV042 with the PPTP server configured, which is working because I can connect with my iPad and droid phones, however, I'm unable to access resources on the RV042 side (192.168.1.X) when my local network is the same ip scheme (192.168.1.x). It works fine when I'm on a different network like 3G or someone else's Wifi network (192.168.11.X).
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