ipv6

Convert IPv4 to IPv6 manually

由 风格不统一 提交于 2019-12-20 04:39:05
问题 After read this article i have a question: In the exapmle in this link there is explanation hot to convert 192.168.25.234 into equivalent IPv6 address so in the example this address become C0A8:19EA and it says that this can be written into the following 128-Bit IPv6 link-local address: FE80:0000:0000:0000:0000:0000:C0A8:19EA or FE80::C0A8:19EA So my question is how C0A8:19EA become FE80:0000:0000:0000:0000:0000:C0A8:19EA ? 回答1: The C0, A8, 19 and EA are just 192, 168, 25 and 234 displayed in

is ipv6 backward compatible with ipv4?

由 此生再无相见时 提交于 2019-12-20 04:09:54
问题 I've got a little udp example program written using ipv4. If I alter the code to ipv6 would I still be able to communicate with anyone using the listener with an ipv4 address? I was looking at porting examples at http://ou800doc.caldera.com/en/SDK_netapi/sockC.PortIPv4appIPv6.html I'm not sure if simply altering the code would ensure that it worked or if I'd have to write it in duel-stack mode. 回答1: Yes and no... IPv6 does contain completely different addressing, so you'll have to recode your

How can you run iOS Apps on the Google Cloud even though it lacks support for IPv6

由 喜你入骨 提交于 2019-12-19 09:01:53
问题 A new app store policy by Apple has taken effect on June 1 so that all apps submitted to the App Store must support IPv6-only networking (https://developer.apple.com/news/?id=05042016a). How is it possible to host an app on Google Cloud Platform that only supports IPv4 (https://cloud.google.com/compute/docs/networking) and still passes Apple's review process? 回答1: The server side of the app doesn't need to be reachable over IPv6 yet. Most IPv6-only networks have a DNS64/NAT64 service to reach

How do I validate the ICMPv6 checksum? (Why am do I keep getting a checksum of 0x3fff?)

由 喜欢而已 提交于 2019-12-19 07:57:22
问题 I'm working on a Linux userspace program that receives IPv6 router advertisement packets. As part of RFC4861 I need to verify the ICMPv6 checksum. Based on my research, most of which refers to the refers to the IP checksum in general if you compute the ones compliment checksum of the IPv6 pseudo header and the packet contents the result should be 0xffff. But I keep getting a checksum of 0x3fff. Is there something wrong with my checksum implementation? does the Linux kernel verify the ICMPv6

Change IPv4 to IPv6 string

由 南笙酒味 提交于 2019-12-19 07:23:12
问题 Sander Steffann mentioned in a previous question of mine: Addresses like 0000:0000:0000:0000:0000:0000:192.168.0.1 are written as 0000:0000:0000:0000:0000:0000:c0a8:0001 which is exactly the same address but in hex notation. How do I detect in PHP if an address was written like eg.: ::0000:192.168.0.1 or 0000::0000:192.168.0.1 or 0000:0000:0000:0000:0000:0000:192.168.0.1 etc.? Is it enough to check if an IP-based string has '.' AND ':' ? And how do I change this to the full string 0000:0000

Change IPv4 to IPv6 string

由 ε祈祈猫儿з 提交于 2019-12-19 07:23:10
问题 Sander Steffann mentioned in a previous question of mine: Addresses like 0000:0000:0000:0000:0000:0000:192.168.0.1 are written as 0000:0000:0000:0000:0000:0000:c0a8:0001 which is exactly the same address but in hex notation. How do I detect in PHP if an address was written like eg.: ::0000:192.168.0.1 or 0000::0000:192.168.0.1 or 0000:0000:0000:0000:0000:0000:192.168.0.1 etc.? Is it enough to check if an IP-based string has '.' AND ':' ? And how do I change this to the full string 0000:0000

MAC下查看端口占用并杀死进程

由 依然范特西╮ 提交于 2019-12-19 06:59:39
Eclipse在Run on Server时，Tomcat是开启的，但是报错，显示8080、8005和8009端口被占用 终端输入 查看所有开启的端口 sudo lsof -i -P | grep -i "listen" 出现如下 httpd 79 root 4u IPv6 0xbc257c1a68e3d681 0t0 TCP *:80 (LISTEN) mysqld 95 _mysql 30u IPv6 0xbc257c1a68e3d121 0t0 TCP *:3306 (LISTEN) httpd 277 _www 4u IPv6 0xbc257c1a68e3d681 0t0 TCP *:80 (LISTEN) adb 673 WangChunQian 7u IPv4 0xbc257c1a7972ea39 0t0 TCP localhost:5037 (LISTEN) AlipayDis 2154 root 16u IPv4 0xbc257c1a8440f341 0t0 TCP localhost:27382 (LISTEN) java 8900 root 48u IPv6 0xbc257c1a68e3dbe1 0t0 TCP *:8080 (LISTEN) java 8900 root 49u IPv6 0xbc257c1a73b70121 0t0 TCP *:8009

How to test iOS app on supporting IPv6? Apple rejected app as it is not IPv6 compatible

由 跟風遠走 提交于 2019-12-18 11:50:46
问题 have apps, built 2015 and 2014. How can I test them for IPv6? If my apps doesn't support IPv6, what should I do? My apps are using AFNetworking and Alamofire. I'm connecting mostly to domains ( Ex. api.example.com/v1/...). Only 1 app use IP: (ex: 12.12.12.12:3000/api/v1/...). 回答1: This solution only works if you have an ethernet connection. For creating an iPV6 NAT64 wifi network, follow these steps Step 1 : Open system preferences Step 2 : Open Sharing Step 3 : Click on internet sharing Step

How do you determine equality between two IPv6 addresses?

由 允我心安 提交于 2019-12-18 11:25:27
问题 I have an application that allows administrators to specify valid IP addresses from which web service requests can be made. I simply take the configured IP addresses and compare them against the incoming request. Comparing two IPv4 addresses is trivial and I thought comparing two IPv6 addresses would be as well. However, my networking ignorance started to show when I noticed that IPv6 addresses are a little more complex. One issue I noticed is that if I look at the IP address on the machine

How to store a 128 bit number in a single column in MySQL?

由 跟風遠走 提交于 2019-12-18 10:41:07
问题 I'm changing some tables to store IP addresses as numbers rather than strings. This is simple with IPv4 where the 32 bit address can fit into an integer column. However, an IPv6 address is 128 bits. The MySQL documentation only shows numeric types up to 64 bits ("bigint"). Should I stick with char/varchar for IPv6? (Ideally I'd like to use the same column for IPv4 and IPv6, so I'd prefer not to do this). Is there anything better than using two bigint columns? I would prefer not to have to
订阅 ipv6