Can ping ipv4 but not ipv6 At another ISP i used which provided native ipv6 and cgnat ipv4 the difference was night and day, virtually everything was significantly faster over ipv6 especially at peak times. I’ve read places where some people were like “Remove IPv6 from your images if you don’t use it Apr 17, 2015 · IPv6 is not enabled. I get 4 IPV6 entries on wan6, somehow. Example: host google. Everything else IPv4 fails. Am I missing Feb 28, 2020 · No tether -> can ping IPv4 and IPv6. ping server2 The response I get is . You can check the system time settings by running timedatectl in a terminal. Mar 26, 2019 · The benefits of IPv6 are many. 8 it doesn't respond, when i ping 2001:4860:4860::8888 it works fine. output of ipconfig from pc1: Ethernet Adapter Local Area Connection: Connection-specific DNS Suffix . 0% packet loss I can ping the router from the Oneplus; However I cannot ping the IPv4 address of the Mac I can ping IPv6 but not IPv4. both have obtain IP automatically activated. They can also ping the outside port (g0/0/0) of the router at it's IPv4 address, but when pinging the IPv6 address, the both receive a request timed out. I've yet to come across any pure IPv6 deployments in the wild. 8. I already sdm prefer dual Ipv4-ipv6 defaultIp routingIPV6 unicast-routingI{m using a multilayer but it happens also in an on-stick topology, I don´t understand why I can ping everything but not the IPV6 address of the management Vlan. ping -4 google. Pinging server2 [2002:9b08:a21::9b08:a21] However if I ping server2 from my local machine (Windows 7 with both IPV4 and IPV6 running) I get. On that page are links that you can test specific to ipv4 or ipv6. timeout/100% packet loss to gateway IPV4 address and 8. It starts with 100. – Jun 7, 2023 · The IPv6 ping for port G0/0/1 is OK as it is an IPv4 ping to port G0/0/0. 3. ping My-PC-4 from note book and get "Request timed out" on IPV4 address. What have I tried: i After running various tests, Kaspersky say its Dec 20, 2017 · It seems that i can ping google DNS to its IPv6 address 2001:4860:4860::8888 but i can't ping it's IPv4 address 8. We’ve long since run out of IPv4 addresses (though they’re still widely used, often for legacy reasons), but they’re 32-bit addresses while IPv6 is a 128-bit address. 1e100. i can't. 0. But an increased number of IT addresses isn't the only advantage of IPv6 over IPv4. This bridge advertise routes using BGP to my router. Nov 13, 2023 · IPv4 Configuration Type: PPPoe IPv6 Configuration Type: SLAAC LAN === IPv4 Configuration Type: Static IPv4 IPv6 Configuration Type: Track Interface. If on server1 I ping server2 like this. For this, Windows ping command has a “-6” switch: ping -6 www. This ensures the ping uses IPv6. PC-C has the exact problem in reverse. com i get. Type the command as follows: $ ping6 localhost $ ping6 host. I see that the routes are correctly May 14, 2023 · To find an online IPv6 ping tool, just do a quick search for online IPv6 ping tool on your favorite search engine and pick one that fits what you need. Hi, i get a private IPv4 address, as i said there is a CGN. Some comments: On the Android phone, the network interface used is 'wlan0' and it has the IPV4 Address 192. It is giving out IPv6 addresses and the DNS server settings. 8 (8. It appeared that the host was up and running fine, we just couldn’t get to it remotely. They are pingable from my home machine, but not from my Azure VM. I can ping Google but not GitHub nor Google -4 as seen above). ipv6 address 2001:0:255::2/64 I can ping the ipv4 address but not the ipv6, unicast-routing is enabled. Both IPV4 and IPV6 is activated. Apr 19, 2020 · From the command line, I can ping the ISP gateway. In honor of World IPv6 Day, here are six more good reasons to make sure your hardware, Sep 11, 2023 · ping: URL-of-your-ISP: Address family for hostname not supported. First, IPv4-only legacy systems wouldn't be able to handle that anyway. Regards. Obviously, then, the IPv6 server can be used for testing IPv6 connectivity between your system and theirs. If your system time is too far off, you will not be leased an IPv4 by DHCP -- only an IPv6. Jan 9, 2019 · I have checked the IP setings of the phone, it gets a complete and correct set of IPV4 and IPV6 adresses from the local DHCP server. Jun 9, 2024 · 4. Nov 24, 2020 · This can make testing a little more difficult, since we want to make sure that we’re pinging the IPv6 address and not IPv4. It all comes from the fact that I can ping/curl ipv6 enabled websites or dual stack websites but not ipv4 (I. If you’re not good at math: IPv4 supports 4,294,967,296 addresses. 7. ping to IPv6 host example. b. Jan 11, 2018 · Server 2012r2 VM, static IP, v4 enabled, v6 disabled On the VM - ping-a returns machine name and proper v4 IP ping returns proper v4 IP ping localhost returns proper machine name and v6 ::1 address. In Windows, you can ping IPv6 addresses using a standard ping command. ping My-PC from my desktop and get IPV6 ip address. When in the shell, i can ping IPv4 addresses, but not IPv6 addresses: admin@truenas[~]$ ping 1. ping 192. 6. 5. Second, you'd need to define two more IP types: "source IPv4 dest IPv6", and "source IPv6 dest IPv4", just for transition purposes! Oct 2, 2014 · I have a monitored host that all of a sudden after a reboot was not pingable via IPv4. Google has made things convenient for us by hosting two servers ipv4. It will however offer little diagnostic information. Jun 5, 2020 · I can ping the Oneplus from the Mac: 64 bytes from 192. luka@luka-Inspiron-3458:~$ ping 8. Both IPV4 and IPV6 is activated Apr 28, 2021 · When using IPv4 everything can ping everything (PC's, switch, router). the desktop IP address is allocated on the router by mac address. If that's the case, use ping6 instead. To force use of IPv6, -6 can be used. I can ping anything IPv6. Both get answered with the IPv4 and IPv6 address respectively and ping starts pinging the IPv4 address. Using these tools is pretty easy. Jul 7, 2017 · None of my DHCPv6 clients can ping -6 anything local. 168. output of ipconfig from pc1: Eth Ok i misunderdtood i tought you already have ipv4 connecction. I can do DNS queries over IPv6 to authoritative nameservers on the internet and I get responses. For more verbose output you can test your IPv6 connectivity from a web browser by visiting Test your IPv6. com(iad30s15-in-x0e. c. The “-4” switch forces ping command use IPv4 address. During debugging I ran an interesting effect which may or may not be the related to my connectivity problems. com and ipv6. 127: icmp_seq=3 ttl=64 time=30. I expected I'll get IPv4. There is another one labeled IPv6-pd, which has /56 at the end. Oct 18, 2019 · In essence I need to be able to access systems using ipv6 addresses as well as ipv4 addresses that exist outside of my container host from within my containers. I hit CTRL+C to cancel and I get this:--- google. Before I reboot it again, what else can I poke to figure out why this happens? This means that an IPv4 packet can't go to an IPv6 destination address. 10. Using IPv6 GUA adresses everything can ping eachother, except PC-B is unable to ping the switch. Dev can ping DbServer's v6 address but not its v4. If you need to reconfigure your system time and/or time zone, run sudo dpkg-reconfigure tzdata in a terminal. The repeater is a Tenda AC1200 and was setup as instructed to be an AP. From another host I’m able to ping IPv4 and IPv6 addresses of the bridge. domain. ping6 domain_or_IPv6_address Using the ping6 command to ping the IPv6 address Final Words Jul 11, 2023 · We had IPv4 and we’re slowly moving to IPv6. com. It seems that ipv4 works but not for outbound connections. It appears that the link posted already mentions this, but just for clarity's sake On this page you can test the ping latency of your internet connection, and compare the performance of your IPv4 and IPv6 connectivity. I tried to do ipconfig /release and ipconfig /renew, puting a fixed IP, updating my drivers, but nothing helps and when i try to ping google via 8. DNS works just fine. Last edited by Zod (2020-01-22 21:09:01) May 14, 2024 · If you need to test IPv6 connectivity or functions, you might want to ping an IPv6 address on purpose. Swap “www. First has /128 at the end, all 3 others have /64 at the end. Oct 30, 2021 · To ping using IPv4, simply use the -4 option, e. One funny t Dec 29, 2023 · Compliments, I built a network with both IPv4/IPv6 the Multi switch is configured as the layer 3 router and the (Router) is the external network site. If I ping by name, I am typically returned the IPv6 address of that May 4, 2023 · An IPv6 is a preferred protocol over IPv4 in modern Windows and Linux systems. It will instead be: ping -4 hostname. Network Computing – 8 Jun 11 Six Benefits Of IPv6. net (2607:f8b0:4004:807::200e)) 56 data bytes And nothing else. com -4. I've tried several IPv6 addresses. The easy fix is to just append a “-4” as shown above in the ping command. From the incus host I’m able to ping the container in IPv4 and IPv6. 81… I also can’t ping any IPv6 address, also with the direct address without domain name. I thought IPv6 is preferred if both are available, why does it choose IPv4? Dec 23, 2019 · Through pinging different sites I realized that when connected to the AP repeater I can ping IPv6 but not IPv4. Just type the IPv6 address you need to ping into the box, hit the button to start, and the tool does the rest. Jul 30, 2023 · When I run ping myserver I can see two DNS queries in Wireshark, one for A and one for AAAA. Pinging localhost or ::1 works fine, however. xx1 and also get "Request timed out" a. I haven't made any firewall changes. 1. However I can't ping any IPv4 addresses other than local host, eg. Pinging server2 [155. Apr 14, 2011 · These 5 commands (you'll need an elevated cmd prompt on Win7 or 2008R2 to execute these commands successfully) will disable a machine's ability to go out to the internet and get a public IPv6 address, and then (hopefully, within 15 minutes) register the IPv4 address it is using with the DNS server it's configured to use on your domain. Unforunately currently I have no ethernet cable available in order to connect to the AP and make any changes, but maybe it can be fixed without changing AP Nov 12, 2024 · Hello, I have a bridge configured for IPv4 and IPv6. com ping statistics --- 7 packets transmitted, 0 received, 100% packet loss, time 6125ms I can ping IPv4 addresses just fine. And the result will be similar to the following: You can also add a -4 to the ping: ping example. With IPv6, everything from appliances to automobiles can be interconnected. Jul 14, 2020 · Could you please send the result of "ipconfig /all" of the source and destination machine? The results of host name ping, IPv6 ping and IPv4 ping? Would be useful also if you could send the results of the "route print" command of the source and destination machine. . so the container can ping the docker0 ip6 address and other containers ip6 address but can’t ping anything outside the host. Yeah, this is the default behaviour - you can use the "inet" or "inet6" switch at the end of your ping command if you want to use IPv4 or IPv6 when pinging a domain name respectively. If you need to see the IPv4 address of a remote device, you can force the ping command to use a specific protocol. I think that there might be an issue with the IPv6 address itself (2001:db8:acad:A::1/64), but I am not sure. How to prefer IPv4 over IPv6 in Windows 11/10. The DHCPv6 clients have created their own AAAA records. but I can give prefix in Windows 7 machine. When I ping -6 devices DNS returns the correct IPv6 address but the device does not respond. Apr 2, 2019 · I'm using IPV6 to configure a few routers and when trying to ping the connection to make sure everything is working the command ping ipv6 (address) produces the result of "translating (address)" An example of the address I'm using is 2001:EE:1:1::1/64, I've looked everywhere and can't figure out the issue, excuse the ignorance I'm new to this. What doesn't work, though, is ICMP over IPv6. 8 PING 8. I currently have a router that has dhcp broken, it cant properly allocate an ip for my ipv4 so i set it manually, sadly that means wifi devices aswell have to be stup manually not just cable. Nov 12, 2021 · On the Android phone, I have tried to ping fe80::dea6 fe21:3e1e%wlan0 but it doesn't work. I am not able to give prefix length in Windows XP. com Sample outputs: Feb 1, 2022 · Once i'm in 11 the IPV4 doesn't work anymore, the ipv6 is still nicely configured automatically with DNS but not the ipv4. External sites can reach the LAN IPv6 IP address assigned to the firewall, but not the WAN IPv6 address assigned to the firewall ( I do not understand why). They can ping -6 www. When the router checks the IPv6 routing table, it won't find any IPv4 routes and vice versa. When using simulation mode, the ICMP packets seem to reach the switch from PC-B, but are dropped by the switch. The only changes that have Feb 18, 2021 · UDP works fine over IPv6 too. All pings are working except the Router to Multi switch IPv6 ping the two interfaces have the same link-local address but the IPv4 can ping the same interface, please advice. That page you curled to supports both 4 and 6. com” with the actual address or hostname you need to ping. e. DbServer can ping Dev's v4 address but not its v6. PC-A can ping the switch without a problem. So instead of: ping hostname. How to Force Ping to Return IPv4 Address on Windows. com $ ping6 IPv6-address $ ping6 2001:4860:b002::68 The best way is to ping global website such as ipv6. One of the Server 2008 SP2 boxes also runs DHCPv4 and 6. To start troubleshooting somewhere, I installed a PING tool on the phone, and found that it can PING any other computer via IPV4, but not via IPV6. I have ipv6 unicasting enabled and I have been pinging it without the prefix. 8 ping statistics --- 173 packets transmitted, 0 received, 100% packet loss, time 173374ms luka@luka-Inspiron-3458:~$ ping6 2001:4860:4860::8888 PING 2001:4860:4860::8888(2001 Jun 22, 2017 · Ok, I think finally time to get my head around IPv6. 127 ping statistics --- 4 packets transmitted, 4 packets received, 0. Nov 12, 2022 · Using ping6 command to ping IPv6. Share. google. example. The weird thing is I configured a different switch to the same router with the same config and ipv6 connectivity works great, but i cant figure out why this specific connection wont work. 433 ms --- 192. 1) 56(84) bytes of data. From another host, I am able to ping the container using its IPv4 address but not using its IPv6 address. I can RDP into DbServer from Dev using either v6 or v4 just fine. Jun 18, 2021 · PING google. That “-4” tells the ping command to use IPv4 even if an IPv6 address is available. I can ping any IPV6 IPs and domain names fine, such as ipv6. Tracking interface for LAN seems to be working as I am getting /64 prefix IPv6 on LAN as well; I cannot enable Router Advertisement, as soon as I enable it, I loose IPv6 on the LAN interface Oct 19, 2010 · All are assigned static IPv4 and IPv6 addresses. ping My-PC from notebook and get IPV6 ID address. The only reason I can still access this forum is because it is available v6. Tethered -> can ping IPv6 but not IPv4 (does not even resolve a DNS address but also a direct IP address also does not work) Searching the issue has been a problem as I get lots of hits but not on my issue. But since ipv6 and ipv4 are peered separately with their own bgp tables, they can often take significantly different routes which can be significantly better or worse. com, enter: $ ping6 ipv6. Sep 18, 2019 · Does this mean you can ping IPv4 addresses from your guest OS, but you can't ping IPv6, while Bridged to the wi-fi adapter? Bridged may not always work with a Wifi adapter, due to to-the-letter implementation of the Wifi protocols by either the wifi adapter driver or the access point firmware. Two Win2k8r2 nodes on the same switch, just like your scenario: (Open in new window if the image is not large enough) There can only be two things stopping you at this point that I can think of: Either you have a really gimpy switch that won't switch IPv6 packets, or (most likely) you have ICMPv6 blocked by the Windows Firewall on your clients. IPv4 and IPv6 are actually different protocols; so you can't ping an IPv6 address sourcing it from an IPv4 address. I get exactly the same symptoms if I ping/ping6 via diagnostic page in Telstra SmartModem. As you can see, I get IPv6 address. Feb 4, 2022 · While this is nice to know, my problem is not that dig returns IPv4 but that ping uses IPv6 which fails. com The -4 option is used for many command line tools to force use of IPv4. Apr 5, 2021 · Thanks a lot for your answer, I have included both ping and ping -4 in my question. 33] The TCP/IP Mar 29, 2024 · LAN clients can ping the IPv6 address of the firewall on the LAN side, but the WAN side is unresponsive to ping requests. SOCAT IPv4 to IPv6 Routing. PC-C can ping both IPV4 and IPv6 addresses at g0/0/0, but can only ping IPv4 at g0/0/1. 0. 1 PING 1. g. For example, if your IPv6 connectivity does not exist you may get the following IPv6 test output. Almost all IPv6 deployments are dual Apr 14, 2018 · Sometimes this can be caused by an incorrect system time. 8) 56(84) bytes of data. Final Words Oct 28, 2019 · You can still force ping to return IPv4 address though, which is much easier to remember and work with, by using the following command: ping hostname -4. Apr 18, 2015 · down votefavorite PCs are connected to Cisco switch and up link goes to Cisco 1841 router on router LAN side interface f0/0 ip add: 2001:xx:xx:xx:1000::64/120. 8. ^C --- 8. Simply add a “-4” after your usual ping command to use the IPv4 protocol version: ping DESKTOP-V79DK27 -4. You recall that in BGP, even when we exchange IPv6 NLRI over an IPv4 transport, we still had to set the next hop to an IPv6 Address. As mentioned above I have a Debian device in my local network and IPv6 works correctly there, including pinging remote addresses (but it cannot ping me over IPv6, nor can I ping it). I am using a windows server 2016 DHCP server. ping My-PC-4 from desktop and get IPV4 address. If Jun 9, 2024 · ping My-PC-4 from notebook and get "Request timed out" on IPV4 address; ping 192. I might have worded my problem wrong: Ping has always used IPv4 for me and I would like to find out WHY it suddenly uses IPv6. I can't ping any public IPv6 address from my Azure VM. Apr 26, 2013 · When I use ping -6 it seems to show a ipv6 addres, so I concluced that ipv6 DNS resolution was not the problem. CMD Ping Versus Ping 4. The firewall can ping IPv6 addresses on the LAN side. Ping reply with IPv6 address, not IPv4. I´m even able to ping the Ipv6 subinterface so to speak, created on the multilayer switch. Pinging DESKTOP-V79DK27 Nov 1, 2023 · Pinging on an IPv6 network will give a massive string of numbers. 109 and IPV6 Address fe80::ac21 fe48:49a5. I have two servers both running Windows 2008 with IPV4 and IPV6 both running. If the ping command fails to ping the IPv6 address, it could be that the IPv6 protocol is disabled or it is not supported by your computer or the router it is connected to, or by your ISP (Internet Service Provider). 1 (1. $ ping 2001:4860:4860::8888 PING 2001:4860:4860::8888(2001:4860:4860::8888) 56 data bytes ^C --- 2001:4860:4860::8888 ping statistics --- 151 packets transmitted, 0 received, 100% packet loss, time 152005ms May 31, 2017 · Trying to ping IPv6 addresses immediately shows 'Network is unreachable'. Earlier, ping command could only use the IPv4 addresses and thus a separate utility called ping6 was created. How does this happen when v6 is not active on the system? You can opt instead to view the simple test, which will give you a quick pass/fail for IPv4, IPv4+IPv6, and IPv6. 1 Jan 17, 2017 · Off the top of my head it looks as though you don't have an ipv4 address but you do have an ipv6 address. Getting through an ipv6 -only router with ipv4. Any reason it is defaulting to IPv6 instead of IPv4? – CJ7. If I run ping -6 it uses the IPv6 address. On some older Linux versions, ping may not work for IPv6. Commented May 2, 2012 at 11:55. I have the Jun 12, 2013 · MS-Widows user can use ping -6 command as described here. Someone went out and looked at it and found that if he disabled IPv6 on the host then he could ping the IPv4 address. You can try setup static ip forr the ipv4 connection and keep ipv6 disabled. Last edited by mwohah (2023-09-17 12:28:12) Oct 14, 2020 · To demonstrate, the example here makes use of both Ping/Ping6 and opening Websites(IPv4 and IPv6). eynt zgeb wrsqa tqq qxmuwf vbbe abpec wmhby xtju hkmmh hefah wwjqoae elx rrmksl hxnt