Protocols / Routing :: How To Calculate Broadcast Address
Apr 27, 2012How can know the Broadcast address before subnetting? I know how to calculate the broadcast address , but don't understand 'Broadcast address before subnetting'?
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Subnetting - How To Calculate Network Address
Jan 11, 2012Given the IP address of 172.16.10.22 and the network mask of 255.255.255.240... answer the following:
What is the network address?
What is the broadcast address?
What is the valid host IP range?
What I have done so far:
Part 1 - Broadcast address
172.16.10.22 - 10101100.00010000.00001010.00010110
255.255.255.240 - 11111111.11111111.11111111.11110000
Researching different ways to find the Broadcast address I took the binary IP address and replaced all numbers with 1's for the host bits identified in the subnet mask and came up with:
172.16.10.31 - 10101100.00010000.00001010.00011111
Is that the correct Broadcast address?
Part 2 - Network address
I am not sure what is meant by the network address and all my research has come up with either MAC addresses (obviously wrong) or CIDR notation...How do I calculate the network address?
Part 3 - List of valid IP's
Using the same address 172.16.10.22/28 I did the following:
28 is closest to 32 (block wise) so 32 - 28 = 4... 2 ^ 4 = 16 (block size)
IP address listing:
172.16.0.0
172.16.16.0
172.16.32.0
172.16.48.0
172.16.64.0
and so on...
The IP address in question is 172.16.10.22 and falls in the 172.16.0.0 - 172.16.15.0 block...
Is this the correct list of valid IPs?
Cisco Switching/Routing :: C6509 - Broadcast Not Working Between Primary And Secondary IP Address
May 11, 2012I have recently configured secondary ip address on LAN Interface of Cisco C6509.. We have some application which needs to use broadcast traffic communication to communicate with client... Broadcast is working within subnet & also working from broadcast server to primary subnet. But not working from secondary subnet.. I have checked broadcast within secondary IP range & it's working fine... Secondary not working broadcast with primary and also with broadcast server... broadcast address is different for these subnet but both should be communicate since configured on same interface... When I went through Cisco website found that command "ip directed broadcast" which will pass broadcast to different subnet... But I'm not sure whether any other impact if I enable that command on particular Ethernet interface...
View 6 Replies View RelatedProtocols / Routing :: Not Acquiring Ip Address
Jun 9, 2011I have a dell laptop. It will pick up and connect to the neighbors wifi. But when trying to connect to mine it will not acquire a network address. It continuously searches but says 0.0.0... it says the signal is excellent but will just not acquire the ip address. By the way, cell phones with Wifi connect to this network with no problems.
View 2 Replies View RelatedProtocols / Routing :: Can You Change Your IP Address
Sep 17, 2011So I want to watch some videos on justin.tv, but for some reason I have been IP blocked. I actually went on their support forums and the guy basically said "I picked up a bad IP address", so I didn't do anything wrong, I just got unlucky.
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Feb 16, 2012Keep a log of my own (Wan) IP-adress. It should look up my own IP-address and write it away to a log, so that I can look up a few weeks or months later what my IP-adress was on a certain day. I am using a router at home.
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View 6 Replies View RelatedProtocols / Routing :: Any Way To Get IP Assigned To Physical Address?
Apr 12, 2012Is there any way to get an ip address through it's physical location? I was asked this by a friend and it's a good question. We know how to get the physical address by it's by coordinates, but is it possible to reverse it, getting the ip assigned to the physical address?
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Jun 5, 2012Am having an issue with my cisco 1841. I recently brought some IP Publics. Now that i need them i just can't use them, I don't know much about routers but till now have successfully manage to do some stuffs with the router after googling ,OK we already have some other ip publics and when i look at the config file i can see something like this:
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Mar 30, 2011How can I change my external IP address which is assigned
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Jul 15, 2012well i had the same problem because i got bored and i was like hmm i wonder if i can change my IP and i tried it and i had the same problem but when i did system restore it still did not work, now i have to get a new operateing system...
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Nov 15, 2011Okay so currently in my possession is a SR 5500 wireless channel receiver with a problem.. We need to find its current ip address it also is not a standard ip address such as 192.168.xxx.xxx it has a standard ethernet port and of course GPIB ports
I'm looking to know if there is a way I can find its ip address by maybe with a crossover cable, or by bridging its connection to my computer and somehow seeing what ip it's requesting.
Protocols / Routing :: Determine Country From Email Address?
Nov 8, 2012I have a list of email addresses, people who have subscribed to a free electronic newsletter. The email address is all the information we have about each subscriber.A satellite office is going to begin handling print and electronic subscriptions for subscribers in Peru. Is there any way to determine which of these email addresses are from Peru?
View 5 Replies View RelatedProtocols / Routing :: Wireless Network Doesn't Have An Valid IP Address?
Apr 5, 2013giving unauthorized access and no internet access
Windows IP Configuration
Host Name . . . . . . . . . . . . : KHANBALOCH-PC
Primary Dns Suffix . . . . . . . :
[Code].....
Protocols / Routing :: Change Ip Address Without Changing Internet Connection?
Jun 11, 2011How i can change my ip address without changing my internet connection??
View 3 Replies View RelatedProtocols / Routing :: Partition Departmental IP Network Address Block To Create Staff / Student Subnet?
Sep 28, 2011partition the departmental IP network address block to create a staff and a student subnet. Each of these will be identified by its own network address and netmask. It is university policy that you must be economical with the IP addresses. That is, the subnets must be as small as possible, but they must be large enough to accommodate the maximum number of hosts you were given. Also, it is university policy that the respective gateway router to the outside world should always be given the highest possible host IP address in the subnet. The student subnet should have a higher IP network address than the staff subnet. The network must be able to support up to 60 machines on the staff subnet (not counting the router) and up to 120 machines on the student subnet (also not counting the router).
IP address/netmask
University network address127.158.128.0
University network mask255.255.192.0
University internet gateway IP address127.158.191.254
Department network mask255.255.254.0
Department router address127.158.129.254
Suppose that the network address of the departmental network is 127.158.128.0 (calculated by AND between Dep network mask and Dep router address)I know that 60 machines would use 6 bits for the staff subnet.the netmask of staff would be 255.255.255.192.how can I figure out the the IP network address of the staff subnet.I have worked out the range for the staff subnetwork.
127.158.128.0 - 127.158.128.63
127.158.128.1 = Gateway address
127.158.128.63 = Broadcast address
Now how can I calculate the IP network address of the staff subnet?
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Jan 2, 2011I need to configure these qos settings in a C2960S. [code]How I calculate the buffer allocation needed? [code]
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View 2 Replies View RelatedCisco :: OSPF Link ID As Broadcast Address?
Sep 24, 2012I have an AS-external route being redistributed into OSPF from a static route on one of my routers. I recently changed the static route from a /24 to a /26 and all of a sudden the link ID of the segment in the OSPF database went from the network address to the broadcast address: Code:
View 5 Replies View RelatedLinksys Cable / DSL :: WAG320N - Disable SSID Broadcast And Enable MAC Address Filtering?
Feb 15, 2011When disabling SSID broadcast and enabling MAC address filtering on WAG320N, my other wireless laptop get disconnected. And when you try to connect, it doesn't connect again.
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Aug 7, 2012I'm having some issues calculating CIDR notation, I'm just not able to get a solid grasp on it. [URL] but I'm not seeing how to calculate it. how to calculate it?
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Feb 23, 2011for network 192.168.7.128/26 what is the first usable host IP address in decimal? What is the last usable host IP address in decimal?
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Jun 5, 2011An IP packet of size 1500 bytes passes through two network segments before it reaches its destination. The header size of this packet is 20 bytes. The maximum size of an IP packet in the first intermediate network (its MTU) is 1024 bytes, and that in the second network is 576 bytes.Explain how the IP packet described above would be fragmented into smaller parts in a router, paying particular attention to the flag bits and to the fragment offset field in the header.
- Fragmentation and reassembly needs to break a data-gram into an almost random number of pieces that later can reassembled.
- It uses the identification field to ensure that fragments of different datagrams are not mixed.
- IP packet of 1500 bytes comprises 1480 bytes of data and a 20-byte header.
- In the first intermediate network, the packet size of 1024 bytes allows for 1000 bytes of data plus a 20-byte IP
header.[code]
Cisco Switching/Routing :: ASR 1002 And Udp Broadcast
May 16, 2013Since a upgrade in IOS XE 3.0.9, our ASR 1002 have a problem with the DHCPDISCOVER.
View 1 Replies View RelatedHow To Calculate Network Convergence Time In OSPF
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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.
Cisco Switching/Routing :: 2821 Forwarding Udp Broadcast
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Router:
interface GigabitEthernet0/0
no ip address
duplex auto
[Code]....