IPv6 is the successor to IPv4. Rather than 2^32 addresses (like IPv4), it has 2^128, which is 340,282,366,920,938,463,463,374,607,431,768,211,456 unique addresses (34 undecillion). IPv6 addressing is quite different to IPv4 and is not backwards compatible, but protocols that sit on top (HTTP, SSH, ...
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0answers
24 views
How to test external IPv6 address from the same server
I'm using a server which is basically IPv4 only connected, but with help of Hurricane Electric tunnel it now also have an IPv6 address.
Now I want to regularly check this IPv6 connectivity by a ...
0
votes
2answers
43 views
Can IPv6 IPSec replace https/ssl for secure website network encryption?
Take away the 'authentication' part and just talk about the encryption part please! (Authentication is a different problem.)
Example: a connection to http://ipv6.google.com can be encrypted via HTTPS ...
0
votes
1answer
27 views
Howto enable IPSec with IPv6 automatically?
Although IPSec is included in the IPv6 protocol, this doesn't mean that it gets actually used.
I know how I could create a VPN manually via e.g. racoon or any other VPN-Server software, but that's ...
0
votes
4answers
62 views
Windows 7 resolve localhost name with ipv6 instead of ipv4 [duplicate]
When I ping localhost I can see that localhost name is resolved as :::1 instead of 127.0.0.1. Do you know how to solve this? I need a ipv4 resolution of localhost for Tomcat server.
I could quickly ...
0
votes
0answers
19 views
Disable ipv6 autoconfiguration on a specific interface in OSX
Is it possible, either via the command line or C code using the sysctl/fcntl/etc. APIs, to disable IPv6 router solicitations, router advertisement acceptance, etc. on OSX for a specific interface? It ...
0
votes
0answers
23 views
How do you add a IPV6 /64 to a CentOS Server? [duplicate]
The examples I see when searching show this as the setup.
IPV6INIT=yes
IPV6ADDR="XXXX:4300:000a:0055:0000:0000:0000:0002"
IPV6ADDR_SECONDARIES="XXXX:4300:000a:0055:/64"
...
1
vote
2answers
43 views
Identifying SNMP packet from just the IP header
Is it possible to identify an SNMP packet from just the IP header?
2
votes
1answer
54 views
CentOS, ifdown on virtual interface removes IPv6 addresses on physical interface
In CentOS 6.4, when using 'ifdown' on a virtual interface, the IPv6 addresses configured on the physical interface are also removed. I expect only the virtual interface to be changed.
How can I ...
1
vote
1answer
32 views
Server 2008 IPv6 Connectivity issues
I am having issues with my IPv6 connectivity via Windows Server 2008.
External traceroute shows each hop along the path, including the servers gateway. It then times out, never reaching the host.
...
1
vote
0answers
24 views
How to setup nginx that it's don't use ipv4 in ipv6 notation?
I'm using nginx in a dual-stack environment (native IPv4 and native IPv6 conection at the same time). Threre is an external application which nginx is the proxy for. Unfortunately this application ...
0
votes
1answer
42 views
Reverse-resolved address ending with .bng?
I routinely check netstat --tcp when ssh'ed into my server, but today found an odd hyphenated address format that I haven't seen before:
Proto Recv Sent Local Address Foreign Address ...
0
votes
0answers
82 views
ip6tables port redirect with TPROXY on IPv6 only
Our server is IPv6 only connected and an applications listen to port 8080 at private network, but we need port 80 at public Internet.
On purpose of testing, when opening the firewall for port 8080, ...
0
votes
0answers
16 views
IPv6-connected FreeBSD server is not available via LAN [migrated]
My Setup
I have a FreeBSD server with the following output of uname -a:
FreeBSD glacier 9.1-RELEASE FreeBSD 9.1-RELEASE #0 r243825: Tue Dec 4 09:23:10 UTC 2012
...
0
votes
0answers
35 views
How to configure 100+ ipv6 on vps? [duplicate]
I have vps with Ubuntu 12.10 x32 and several ipv6 onboard
root@ :~# cat /etc/network/interfaces
auto eth0
iface eth0 inet static
address 38.--.--.--
gateway 38.--.--.-
netmask ...
0
votes
0answers
71 views
IPv6 only works after pinging the default gateway (Centos)
We have a lot of nodes with CentOS 6 + OpenVZ (solusvm slave) with IPv6 working inside the containers without any problems. Now we installed new CentOS 6 + OpenVZ (solusvm slave) slave node server ...
-1
votes
1answer
48 views
IP testing tool similar to wireshark website [closed]
I am looking to implement a tool similar to the one linked below on my personal server/website what are the steps I would need to get started?
http://www.wireshark.org/tools/v46status.html
I ...
1
vote
2answers
53 views
ipv6 Unrecognised Command on Cisco 3400
I have two identical Layer 3 switches, running identical Cisco IOS Versions. One of the switches, I can configure with ipv6. The other switch however, tells me "Unrecognized command" when I try any ...
2
votes
1answer
33 views
How do providers plan to deal with rDNS for client /64 IPv6 blocks when assigned?
The standard block assigned to a home will be a /64 block to enable autoconfigure. This means the traditional reverse DNS mapping of host-237.miami.ispname.com is not only practical, it's improbable ...
1
vote
1answer
50 views
IPv6: ping6 from foreign host works, but cannot ping6 on same host [ubuntu 12.04]
I have a strange issue with ipv6 on Ubuntu 12.04.
There are two hosts, directly connected to the internet. Both have assigned a /64 network. They are properly configured with a /128 endpoint each and ...
0
votes
1answer
50 views
Getting DNS replies for non-existing hostnames (DNSMasq)
I noticed some 'weird' DNSMasq behavior when I set up my LAN for dual stack IPv4 & IPv6 networking. It seems that my DNS server (DNSMasq) which acts as a forwarder and also has all the host names ...
1
vote
0answers
31 views
How do I configure stateful DHCPv6 in Windows Server to allow clients to ping each other?
How do I configure stateful DHCPv6 in Windows Server to allow clients to ping each other?
I would like to configure my Windows 2k8 DHCP server to distribute IPv6 addresses in my office network that ...
0
votes
1answer
46 views
Should an Active Directory network use IPv6 unique local addresses in addition to global addresses?
Should an Active Directory network use IPv6 unique local addresses in addition to global addresses?
If so, should those be distributed using DHCPv6?
Also, if a DHCPv6 server is distributing unique ...
1
vote
3answers
46 views
RHEL (say 5.6, kernel 2.6.18-238) with dual IP address (IPv4v6)
So I have a SERVER that that utilizes RHEL's (assume 5.6) underlying kernel for setting up TCP connections and other networking aspects. My deployment need requires that the SERVER have dual IP ...
2
votes
1answer
107 views
Configuring ufw or iptables to allow only outbound traffic to the Internet from an internal IPv6 network
How do I configure ufw or iptables to allow only outbound traffic from an IPv6 network to the Internet?
I have an office network with a traditional NAT setup for IPv4. I would like to add a PC ...
0
votes
1answer
43 views
Windows Azure Linux VM, teredo tunnel and squid proxy
I have teredo working so that I can ping VM via ipv6, squid3 is also working fine but only via ipv4. I made two endpoints (tcp and udp) to the proxy (port 8888) on the Azure site. What should I do now ...
1
vote
0answers
122 views
IPv6 Not Routing Properly
I am setting up a RRAS machine for my personal use and for use by a few of my friends. I am currently using Windows Server 2012; but I have tried this with Windows Server 2008 R2. Both systems ...
0
votes
1answer
27 views
ipv6, static for some destinations, dynamic for the rest
I would like to use a static ipv6 when accessing the company network (from other locations, eg home) and dynamic (privacy) adresses for the rest of the internet.
Is that possible? Does this relate to ...
11
votes
3answers
300 views
Use Windows DHCP/DHCPv6 server without setting a static address
You cannot set the Windows DHCP/DHCPv6 server to listen on dynamic addresses or all addresses, only static addresses. Is there a technical reason for this limitation? Is there any workaround?
My ...
0
votes
1answer
34 views
Connecting to windows 2003 using ipv6-literal: A duplicate name exists on the network
I'm trying to connect to Windows 2003 server's share using ipv6 address from Windows Server 2008.
I use ipv6-literal.net conversion as described on ...
0
votes
1answer
64 views
IPv6 and IPv4 mapped address
I've a box with 1 private IPv4 (192.168.0.X) and some IPv6 (let's call one Y::Z).
I have an application listening on 192.168.0.X on port 1234 and an application that want to connect to that service ...
1
vote
1answer
85 views
Bind reverse ipv6 mapping, dig gives no answer, SERVFAIL
I am using Fedora 17 with Bind 9 installed, trying to configure a DNS and I already solved a problem:
Bind DNS configuration, dig command don't resolve name
Now ipv4 and ipv6 mapping works, ...
0
votes
2answers
39 views
Cisco PIX 515 ipv6
I know cisco pix 515 is an old and EOL device, but does anyone know if it suppors IPv6 or is that completely out of the question?
0
votes
2answers
39 views
ngnix startup isse ipv4 & ipv6
I'm trying to get my first nginx server setup, and am having trouble setting up ipv4 and ipv6.
I have this in the top of my config file (it's the only server block in the config file):
server {
...
-3
votes
1answer
65 views
Graphing IPv6 Traffic from Cisco Switches [closed]
I am interested on how to graph Ipv6 traffic in my network using Cacti? Any help is appreciated.
-1
votes
1answer
42 views
Apache2: Dual Stack mode IPV6 / IPV4 for existing IPV4 hostings [closed]
I'm planning to run my hostings in the IPV4/IPV6 dual stack mode for a lot of hostings / IPs. Short Apache example:
ports.conf
Listen 199.192.201.82:80
NameVirtualHost 199.192.201.82:80
Listen ...
0
votes
1answer
41 views
Dual stack mode; bind to any address other than 0.0.0.0
On a windows 7 machine, I have set IPV6_V6ONLY to 0 in order to allow for dual stack sockets. All the examples of dual stack sockets I have seen on the web bind to the ANY address (0.0.0.0). Binding ...
0
votes
2answers
43 views
IPv6 reverse not resolving for Linux shell “last” and “who”
IPv6 is properly resolving in DNS:
> host 2607:fa18:0:2::17
7.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.0.0.0.0.8.1.a.f.7.0.6.2.ip6.arpa \
domain name pointer sine.xmission.com.
However, the ...
0
votes
1answer
92 views
Getting ipv6 only on ubuntu server with vmware bridge connection
I have ubuntu server 12.10 on vmware.
When I have NAT network configuration I get ipv4 address (checking ifconfig eth0).
With bridged connection I get only ipv6 connection, but I need an ipv4 ...
3
votes
1answer
183 views
Disable AAAA lookups in Ubuntu Linux
We have a step during in of our large map reduce that does DNS resolutions. The application itself uses the c-ares library as well as libcurl.
I notice that with each resolution, there is first an ...
0
votes
0answers
24 views
What is a logical approach to tracking IPv6 connections for abuse? [duplicate]
I have a web server that issues AAAA records and I want to understand how I should monitor that interface for abuse.
Specifically, how should I dice up that address to determine hacking or brute ...
0
votes
1answer
82 views
Is there a drawback to both A and AAAA records in the ADDITIONAL section?
I'm just asking for a possibility of having both ipv4 and ipv6 configurations in one domain.
If I do dig <domain>, inside the ADDITIONAL SECTIONS will display the A and AAAA records.
Are there ...
0
votes
0answers
119 views
Sendmail issue with IPv6
I have an email server configured with multiple-instance of sendmail running each on different IPv4 and IPv6 addresses.
Everything is running smooth until a point where for some domains/emails ...
0
votes
1answer
57 views
Missing link between local IPv6 and SixXS tunnel
I have acquired an IPv6 tunnel from SixXS that I want to use on my local FreeBSD 9.0 box. I have set up the Aiccu tunnel with sixxs-aiccu and rtadvd is already working.
As long as I am using the gif0 ...
0
votes
1answer
74 views
How can I get unique IPv4 and IPv6 visitor counts on nginx access.log in shell?
How do I get some stats on unique IPv4 and IPv6 visitors by looking at a nginx access.log with UNIX CLI?
I use the standard combined pre-defined format for access_log.
0
votes
0answers
99 views
Inject packet to a different NFQUEUE
I have an NFQUEUE, for IPv6 packets hooked to PREROUTING chain of mangle table in ip6tables.
Once I receive a packet in user application, I modified the header. Infact, modified the header from IPv6 ...
0
votes
1answer
130 views
SMTP - Remove IPv6?
We're doing a "try-out" of SmarterTools SmarterTrack (help desk) software. We can't get it to send email. We showed someone at SmarterTools our log - SmarterTrack keeps its own SMTP log - and they ...
1
vote
2answers
58 views
Forward traffic from IP6 to IP4
On my debian6 server is a process that only listen on IPv6 but I also need to listen on IPv4. It seems the program is IPv6 only. Is there a way to route the traffic fom IPv6 to IPv4 on the same host ?
...
0
votes
4answers
521 views
IPv6 only works after pinging the default gateway.
We now have 2013 and I thought it is long overdue to activate IPv6 on my server. But unfortunately, I ran in some problems. To be honest I only have litte experience with IPv6 So I hope you can help ...
4
votes
2answers
99 views
IPv6 prefix management
So, my SiXXS' POP seems to be in trouble and I was thinking in changing to HE. The idea is connect to HE, change radvd setup and... lots of other thinks:
UFW, specially in laptops, which only allows ...
0
votes
1answer
145 views
IPv6 configuration for my private network when prefix delegation is not supported by the provider?
I have a typical router with IPv4 and NAT setup. My provider sends an IPv6 address to the router, but it does not support the IPv6 prefix delegation.
How can I get IPv6 addresses for my private ...
