Why Do Class D Doesn't Have Subnet Mask

Apr 27, 2011

why do class D doesn't have subnetmask

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Cisco Switching/Routing :: WAG54G2 Doesn't Support A Subnet Mask

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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Change Subnet Mask 255.255.255.0 To 255.255.0.0?

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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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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Routers / Switches :: What Is Subnet Mask Of 10.2.1.3/22

May 8, 2011

what is subnet mask of 10.2.1.3/22

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Connect Two Computers Together - It Requires Both IP And Subnet Mask?

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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Cisco :: Calculate Subnet Mask For Router?

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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Wireless Router Does Not Accept Subnet Mask

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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Cisco Routers :: RV082 LAN Subnet Mask

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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What Is Correct Subnet Mask And 10th Address Range

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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How To Find IP Address / Subnet Mask And Default Gateway

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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Linksys Wireless Router :: Subnet Mask 255.0.0.0 On WRT320N

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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Cisco Routers :: WRVS4400N Subnet Mask Limitation

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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Wireless :: Subnet Mask Address Is Illegal Cisco Linksys?

Feb 23, 2011

subnet mask address is illegal cisco linksys?

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Cisco Firewall :: Changing Subnet Mask In An ASA5520 Interface

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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Cisco Routers :: RV042G Subnet Mask Drop-down Menu

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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Routers / Switches :: How To Subnet A Class B IP Address

Jan 16, 2011

how to subnet a class B IP address?I have a homework, I don't know how to subnet a class B.

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Laptop Receives IP Address / Subnet Mask And Gateway - No Internet Access

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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Cisco Firewall :: Can ASA5505 DHCP Support 22 Bits Subnet Mask

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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Cisco Firewall :: ASA 8.4.3 Class C IP Addressing / Routing Subnet Design

Sep 25, 2012

I am carving up an internet Class C for customer. This class C is used by 3 distinct QA, Corporate and Production firewalls. I want to carve up IP space so there is a /26 for each environment. The issue I have is the firewalls may need communication with each other via the public IP space. Currently I don’t have any L3 switches in between the firewalls and the edge internet router. So with subnetting, it would seem I need to push everything through the internet router for the intra-firewall communication.I would rather not push this traffic through the edge router, so I came up with an idea to allocate all firewall outside interface IP’s in the 4th (last remaining) /26. That way, I can allow firewalls to communicate over the primary interface IP’s, which will all be in the same subnet – without going through a routing “engine”/device.
 
For the actual environment subnets (NAT's on respective firewalls), I create a static route on the edge router pointing to each of the firewall’s primary IP’s for the respective environment routes (the first 3 - /26’s).This is still a beta design, but I have done this before on small scale when ISP gave me 2 subnets for example, assuming I was going to put a router in between the customer firewall and ISP. I would use the “routed subnet” on the ASA interface, and then pull the NAT’s from the other subnet. The ISP would have to add a static route directing the NAT subnet to the “routed subnet” correct IP - which would be the firewall outside interface primary IP.I recently found out that with ASA OS 8.4.3 and up, ASA will not proxy arp for IP’s not in its local interface subnet. This means the ISP/router will have to assign static ARP entries on the edge router. This can get messy after the first few NAT entries. So I am debating the design now. I think this kind of stuff going forward won’t be worthwhile with newer ASA 8.4.3 code.

How to communicate between different ASA’s, while still carving up the Class C into usable smaller subnets? The primary reason for doing this in the first place is to support routing on the edge router. I am thinking it might be time to ask for another Class C to do the routing functions, and keep the firewalls all at Layer 2 in one /24 - Class C?

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Cisco Firewall :: ASA5505 / Error / Network IP Address / Mask 10.10.2.65 / 255.255.255.0 Doesn't Pair

Feb 27, 2013

I need to create a vpn connection between two ASA firewalls and when trying to create this AI get an error message below, The config I was to use is -
 
object net-local
Subnet 10.51.212.1 255.255.255.0
object network net-remote
subnet 10.10.2.65 255.255.255.0
 
ERROR: network IP address/mask <10.10.2.65/255.255.255.0> doesn't pair

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Adding A Subnet To A Switch On Different Subnet?

Aug 3, 2012

What I am trying to do is I have one switch with say a 10.1.9.1 sub-net I need to have one of the ports to be trucked with two vlans one for DSL and the other for a local connection with the sub-net of 10.1.5.1 both of the sub-nets are configured in the core as 9 and 5 so I have port 0 set up as a trunk and it is set up as ge-0/0/0.0 vlan_5, vlan_192 on the 10.1.9.1 subnet switch. The DSL is working but the local is not pulling a 10.1.5.1 IP and has no connectivity. Everything looks as if it is configured correctly but still the DSl is working but not the Local connection.

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Cisco Firewall :: 5510 - Cannot Ssh After Mask Change

Aug 7, 2011

I needed to change the mask, not the ip address, of the outside interface of an 5510 running 8.2(3).
 
Immediately afterwards I could establish ASDM but could not re-establish SSH.
 
I tried the following:
 
Zeroize the rsa key and generate a new one Create a new SecureCRT session to accept the new key
 
That didn't work. All I have is ASDM access.

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Linksys Wired Router :: BEFSR41 How To Change Net-mask

Jun 3, 2007

I am using a BEFSR41 for my network. My internal netmask is 255.255.0.0. The only options permitted in the dropdown list on the BEFSR41 is 255.255.255.0. How to change the netmask?

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Ip Addressing Class B And C?

Oct 31, 2011

can i use both class B and class C at the same time?If so, what should i do with class B? and with the other Class C?i got 500 computer into 5 segments

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IP Addressing In Class C?

Mar 4, 2012

I need to provide logical addressing this network using class C but I have been given no address to start with, only the network diagram:

[URL]

How do I even start this? How do I know which address to use?

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Class A IP's On C Network

Dec 28, 2012

I've noticed a Class A IP address on our Class C network. What does this mean and how can I determine what's causing this? I've can ping and tracert which gives 10.44.10.34 and 10.44.10.33. The DHCP Scope on the DC is 192.168.3.1 - 3.200.

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Subnetting A Class C Ip Address?

Dec 13, 2011

I am looking a old exercise I did last year about subnetting and I am wondering if is possible to subnet:

198.18.9.1 /22

I wrote down, last year, that:

16 bit are assigned to network
6 to subnet
10 to hosts

when actually I see a class C ip address with 10 bit assigned to hosts. So, how many bit do I have for network, subnet and hosts?

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Configure Two Class Network On One Router?

Apr 6, 2011

i want 192.168.0.1 with mask 255.255.255.0 class network to communicate with 10.7.27.1 with 255.255.255.128 mask to have the same gateway

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Cisco WAN :: Why 857 Adv Security Don't Have Class And Policy Map

Feb 1, 2012

Why my 857 adv security don't have class-map and policy map command ? now i wanna use traffic shaping on this but when i use command class-map it doesn't have. [code]

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Cisco WAN :: 851W Won't Accept Class-map Command

Feb 1, 2011

I am trying to configure QoS on my Cisco 851w router using the class-map command.However it won't accept the class-map command.The router is running cisco IOS version 12.4(15)T10 "C850-advsecurityk9-mz.124-15.T10.bin".

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Cisco WAN :: Class Based Qos Monitoring On 6509

Mar 8, 2011

I set globally the QOS on my infrastructure and I want to monitor graphically the usage of each classes.I'd like to do that on my COREs Switchs which are Catalyst C6509.I can achieve that in command line, but it's not user friendly and it's not possible to have daily/hourly graphs.
 
So the idea is to find the value in the MIBS and put it in MRTG graphs.The only problem is that I cannot find it in the MIBS.

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Cisco WAN :: Psuedowire-class Command On 2821?

Jul 27, 2011

I have tried multiple IOS for the 2821, including service provider, and advanced enterprise, and none of them have the pseudowire-class command.I have compared the features to the ones that do have the pseudowire-class command on the 6500 series and cannot figure out what I am missing.Is that command not supported on the 2821?

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