subnet

Java library to check if IPv4 or IPv6 address is in a given subnet

由 谁都会走 提交于 2019-11-30 23:32:33
问题 What library can I use to check if an IP address is in a given subnet? I could find libraries like the Apache Commons SubnetUtils (SubnetUtils.SubnetInfo.isInRange) but many do not support IPv6 yet. 回答1: edazdarevic's CIDRUtils supports both IPv4 and IPv6. The example does not mention boolean isInRange(String ipAddress), but it is implemented! Another option is java-ipv6, but it does not support IPv4 and requires JDK7. 回答2: Use spring-security-web 's IpAddressMatcher. Unlike Apache Commons

Oracle PL/SQL versions of INET6_ATON and NTOA functions?

由 十年热恋 提交于 2019-11-30 19:17:06
问题 Any have any good code for converting a IPv6 address string into an integer? Converting IPv4 seems to be fairly easy, with the one format. However, IPv6 has several different formats to show an address: XXXX:XXXX:XXXX:XXXX:: XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX XXXX:XXX:XXXX:0:0:XXXX:XXX:XXXX XXXX:XXX:XXXX::XXXX:XXX:XXXX ::ffff:XXXX:XXX (IPv4 in v6 format) ::ffff:###.#.#.### (also valid IPv4 in v6 format) I'd like to be able to take one of these strings and translate it into an INTEGER for

Get IP Mask from IP Address and Mask Length in Python

由 好久不见. 提交于 2019-11-30 15:40:00
Given an IP Address in dotted quad notation, for example: 192.192.45.1 And a mask length for example 8, 16, 24 typically, but could be anything i.e. 17. Can somebody please provide the code in python to calculate the subnet mask? Preferably I could get the result as 32-bit integer so that it is easy to hash and then reinterpret as dotted quad when necessary for printing. I see that python has a socket library which is basically a wrapper around the unix socket api. I also saw it has the function inet_ntoa(), but it returns some sort of packet struct. I'm not terribly familiar with the Python

Calculate IP range by subnet mask

由 谁说胖子不能爱 提交于 2019-11-30 09:47:32
If I have a subnet mask e.g. 255.255.255.0 and an ip address 192.168.1.5 , is there an easy way to determine all the possible ip addresses within this subnet? In this case: 192.168.1.1 192.168.1.2 192.168.1.3 192.168.1.4 ... ... 192.168.1.252 192.168.1.253 192.168.1.254 192.168.1.255 All I found until now are heavy overloaded .net libraries. Isn't there any native way to solve this with the default namespaces? To determine the adress range follow these steps : 1) Take your subnet mask (here 255.255.255.0) and convert it in binary : 11111111.11111111.11111111.00000000 ( 8 + 8 + 8 + 0 = 24 -> So

Python - ip <-> subnet match? [duplicate]

由 ↘锁芯ラ 提交于 2019-11-30 08:59:49
Possible Duplicate: How can I check if an ip is in a network in python What is the easy way to match subnet to an ip address in python, so that if the ip address is in the subnet I can choose it? Thanks in advance. In Python 3.3+, you can use ipaddress module: >>> import ipaddress >>> ipaddress.ip_address('192.0.43.10') in ipaddress.ip_network('192.0.0.0/16') True If your Python installation is older than 3.3, you can use this backport . If you want to evaluate a lot of IP addresses this way, you'll probably want to calculate the netmask upfront, like n = ipaddress.ip_network('192.0.0.0/16')

Check if IP is in subnet

由 荒凉一梦 提交于 2019-11-30 05:17:39
问题 I have a table A with IP addresses (ipNumeric) stored as unsigned ints and a table B with subnets (subnetNumeric): INET_NTOA(ipNumeric) = 192.168.0.1 INET_NTOA(subnetNumeric) = 192.168.0.0 I'd like to check if this IP is a member of a subnet. The subnets are Class A, B and C. Is this possible to do in reasonable time in MySQL on the fly or should the subnet ranges be precomputed? 回答1: Sure, it's doable. The idea is that we calculate the subnet mask by setting the most significant bits to 1,

Python 3: create a list of possible ip addresses from a CIDR notation

由 折月煮酒 提交于 2019-11-30 02:16:15
I have been handed the task of creating a function in python (3.1) that will take a CIDR notation and return the list of possible ip addresses. I have looked around python.org and found this: http://docs.python.org/dev/py3k/library/ipaddr.html but i haven't seen anything that will fill this need... I would be very grateful for any assistance anyone cares to kick my way. thanks in advance. :-) If you aren't married to using the built-in module, there is a project called netaddr that is the best module I have used for working with IP networks. Have a look at the IP Tutorial which illustrates how

Get IP Mask from IP Address and Mask Length in Python

由 橙三吉。 提交于 2019-11-29 22:32:21
问题 Given an IP Address in dotted quad notation, for example: 192.192.45.1 And a mask length for example 8, 16, 24 typically, but could be anything i.e. 17. Can somebody please provide the code in python to calculate the subnet mask? Preferably I could get the result as 32-bit integer so that it is easy to hash and then reinterpret as dotted quad when necessary for printing. I see that python has a socket library which is basically a wrapper around the unix socket api. I also saw it has the

Determining if two IP adresses are on same subnet - is it leading or trailing 0s get dropped from IP address?

由 元气小坏坏 提交于 2019-11-29 15:43:49
问题 I understand if two IP addresses are AND'd with a subnet mask if the result is the same then they are on the same network. If the result is different then they are on different networks. My question is, when given an IP address omitting some 0s where do the extra 0s get placed? For example if the subnet mask is 255 . 128 . 0 . 0 , and you have IP 126 . 1 . 0 . 10 and IP 126 . 127 . 0 . 1 if you just blindly AND the IPs with the subnet mask you get different results even though they are on the

Python - ip <-> subnet match? [duplicate]

由 倾然丶 夕夏残阳落幕 提交于 2019-11-29 13:12:52
问题 Possible Duplicate: How can I check if an ip is in a network in python What is the easy way to match subnet to an ip address in python, so that if the ip address is in the subnet I can choose it? Thanks in advance. 回答1: In Python 3.3+, you can use ipaddress module: >>> import ipaddress >>> ipaddress.ip_address('192.0.43.10') in ipaddress.ip_network('192.0.0.0/16') True If your Python installation is older than 3.3, you can use this backport. If you want to evaluate a lot of IP addresses this
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