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I have around 20000 IP Addresses. and I am looking to find the network-block-ranges for these IP addresses. The purpose is to provide information to have hole in the firewall so that these addresses can be allowed. I can looking in a.b.c.d/x bits format...
Started by aartist on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
; } else { return false; } }
This won't work unless you change the originalIP variable to a real IP..
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Is there a way to find mapping between MAC address to IP address in C#. i think RARP should be able to do that, is there an API available in C# for that
Started by Kazoom on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Regards....
In case you and MAC address.
Hope this helps, Best regards, Tom.
Www.codeproject.com/KB/IP/host_info_within_network.aspx
It allows mapping of hostname, IP address of parsing the sResults to get the MAC address.
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I need to find a IP address of a specific user and I only have the Mac address available, I'm using Ubuntu. Is this possible?
Started by Roland on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at superuser):
If you have access to the DHCP server, you may be able to look up the MAC address there and see what IP address it got it to the IP....
Then, if the machine is behind a router, you will only get the router IP address.
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Ask your Facebook Friends
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How do I create valid IP ranges given an IP address and Subnet mask in Perl? I understand the concept of generating the IP ranges but need help writing in Perl. For example, if I AND the IP address and subnet mask I get the subnet number. Adding 1 to ...
Answer Snippets (Read the full thread at stackoverflow):
This:
#!/usr/bin/perl use strict; use warnings; use Socket; my $ip_address = '192.168.0.15'; my $netmask = 28; my $ip_address_binary = inet_aton( $ip_address ); my $netmask_binary = ~pack("N", (2**(32-$netmask....
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Using JavaScript how would I validate an IP address "x.x.x.x" is a valid IPV4 unicast address e.g. is not 0.0.0.0 or multicast (224.0.0.0 to 224.0.0.255, 224.0.1.0 to 238.255.255.255, 239.0.0.0 to 239.255.255.255)?
Started by Andrew on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
An IP Address is really ....
The dotted quad notation you're seeing is just that: a notation that makes it easier on human eyes .
Tell whether the address is the network address or the broadcast address for that subnet.
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When a IP-Range is written as aaa.bbb.ccc.ddd/ I need to calculate the first and the last included ip address in this range with C#.
Example:
Input: 192.168.0.1/25
Result: 192.168.0.1 - 192.168.0.126
Started by Anheledir on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
The IP given to you to binary, the network address is the ip address where all of the host bits (the 0's .10101000.00100001.01001000 (ip address)
The bolded parts is the HOST bits (the rest are network bits).....
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I have a port that is bind()'d to INADDR_ANY. I am receiving datagrams successfully. After receipt, I need to read the IP header to get the source IP address.
Started by sludge on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Won't work it is filter to receive a message not the address of coming packet.
Above) which will receive the source address which you can examine for whatever purposes you desire.
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I manage a small-ish network that consists of less than 70 nodes. The previous system administrators opted to have a dhcp server and manually set dhcp addess.
I have opted to rather use dhcp address assignment instead of static address assignment except...
Started by biosff on
, 8 posts
by 8 people.
Answer Snippets (Read the full thread at serverfault):
You get the trade off of knowing exactly of documentation... .
A good point about documentation, make sure you do have the IP address ranges documented, explaining what machine's MAC address to a specific IP and deliver them by DHCP.
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Hi ,
First of all thanks to all ....
I read that i can use the free IP geolocation webservice to get Country name from an Ip address. But how i get the response to my site , Actually this is what i look , In my site there is a need of displaying the country...
Started by Testadmin on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
By_name][1] can give you the country for an arbitrary IP address or hostname (not just the one.
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I know that the IP addresses in range 192.168.0.0 - 192.168.255.255 are reserved and to be used for private network.
My system IP is in 10. . .* range (private). It is connected to our corporate Intranet and it further connects to the Internet through...
Started by Mani on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at serverfault):
If a gateway router receives a packet destined for a private IP address it will just drop the packet, becausePrivate IPs cannot be routed....
Whether whatismyip.com is doing this, I do not know.
Your private IP address.
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