similar to: Diagnosing IPv6 routing

On 4/28/2020 3:17 PM, Chris Adams wrote: > - gateway sends a router solicitation and gets a router advertisement > with "stateful config" set, which tells gateway to do DHCPv6 (but > default route comes from RA) I'm not seeing any outbound IPv6 traffic from my CentOS 7 box on the WAN interface. I do see RA's emitting from the LAN interface, from radvd. Is there

On 4/28/2020 4:22 PM, Chris Adams wrote: > What's in /etc/sysconfig/network-scripts/ifcfg-<name>? I wonder if you > have IPv6 disabled. Pasted below. V6 definitely works. I have a second server and gave it a WAN address and I can connect between them using their WAN addresses. That's what told me that my ip6tables weren't screwed up and that the problem lay elsewhere.

Once upon a time, Kenneth Porter <shiva at sewingwitch.com> said: > I just got 50 Mbps symmetric fiber from AT&T and it includes a /56 > of IPv6 addresses, replacing a much slower ADSL line. I never tried > to get IPv6 working on the old connection. I'm using CentOS 7 as a > gateway and it's worked great for several versions for IPv4. > > I'm not seeing any

Hello, Firstly THANK YOU for the IPv6 NAT support merged in 6.5. It has been almost impossible to get IPv6 into a VM on a laptop that switches between wifi and wired (dock) connections, because you can not add a wifi interface to a bridge. I know NAT is against the IPv6 end-to-end xen but it makes this "just work" for the vast majority of people like me who need to ssh/curl/talk to

Once upon a time, Kenneth Porter <shiva at sewingwitch.com> said: > I'm using OpenWrt at home and it's working mostly fine there. Except > with my Android phone. I'm not getting a DNS setting for V6, but I > do have the setting in the router's config file. The Win10 clients > work fine, though. Apparently Android has issues with DHCPv6, and > I'm betting

Hi, Sorry for the delay. On Tue, 11 Aug 2020 23:52:46 -0400 Laine Stump <laine@redhat.com> wrote: > On 8/10/20 11:23 PM, Ian Wienand wrote: > > Hello, > > > > Firstly THANK YOU for the IPv6 NAT support merged in 6.5. It has been > > almost impossible to get IPv6 into a VM on a laptop that switches > > between wifi and wired (dock) connections, because

Changing the subject line for good ... On Thu, Apr 7, 2011 at 8:58 AM, Lamar Owen <lowen at pari.edu> wrote: > On Thursday, April 07, 2011 11:23:51 AM Brunner, Brian T. wrote: >> AIUI: In previous releases, RH distributed source + patches. ?Starting >> 6.0 RH releases patched source. ?This makes backing out a patch, or >> backporting patches from future development in

--On Tuesday, April 28, 2020 10:16 PM -0500 Chris Adams <linux at cmadams.net> wrote: > I didn't get that you have a static assignment (presumably a business > connection) - they may not do RAs on that (I don't at my ISP job). > Business connections (or at least, connections with static assignments) > tend to operate differently. For that, they should have given you a

Once upon a time, Kenneth Porter <shiva at sewingwitch.com> said: > On 4/28/2020 3:17 PM, Chris Adams wrote: > >- gateway sends a router solicitation and gets a router advertisement > > with "stateful config" set, which tells gateway to do DHCPv6 (but > > default route comes from RA) > > I'm not seeing any outbound IPv6 traffic from my CentOS 7

So, I'm seeing a bunch of DHCPv6 traffic coming from my CentOS7 machines. Basically, the machines are trying to send router solicitations, the packets are blocked at their egress firewalls, and I get to see the logs. I don't wish to disable IPv6. I don't wish to statically configure IPv6 at this time. I wish to have the machines no longer attempting to send router solicitations as

Used steps on sysctl from?Centos7 FAQ (https://wiki.centos.org/FAQ/CentOS7)?and some gathered on internet # cat /etc/sysctl.d/90-disable_ipv6.conf? net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1 net.ipv6.conf.eth0.disable_ipv6=1 net.ipv6.conf.eth1.disable_ipv6=1 net.ipv6.conf.all.use_tempaddr=0 net.ipv6.conf.all.autoconf=0 net.ipv6.conf.all.accept_ra=0

Sorry - that should be sysctl -w net.ipv6.conf.all.accept_ra=0 to disable that, not 1. Chris On Sun, Mar 8, 2015 at 11:14 PM, Chris Stone <axisml at gmail.com> wrote: > Try: > > sysctl -w net.ipv6.conf.all.accept_ra=1 > > to persist between boots, be sure to add this to your /etc/sysctl.conf > file. > > This should prevent the box from listening to any RA

Hello, I am working on Network-Simulation (VNUML). Our simulator uses linux bridgi= ng to connect the UMLs. So there is one problem: The example is the following: There are two hosts simulating one big net. The two hosts have connection over the external nets Net3 and Net6 (see htt= p://www.uni-koblenz.de/~timbub/verteilteSim3.GIF), but in fact there is onl= y one physical connection between the

On Fri, Mar 6, 2015 at 11:52 AM, Robert Moskowitz <rgm at htt-consult.com> wrote: > > > On 03/06/2015 11:00 AM, Robert Moskowitz wrote: > >> >> >> On 03/06/2015 10:55 AM, Barry Brimer wrote: >> >>> >>> >>> IPV6INIT="no" >>>> >>>> But I am still getting a global IPv6 (and of course local scope).

I have been gradually moving more tinc servers over to ipv6 addresses on the tinc 1.1 branch. Tinc is inserting a default route for ipv6 for some reason... default via 2600:3c01:e030:f2::1 dev tinc6 proto static metric 950 pref medium In my case the default route supplied by ra is still the correct thing, but I don't see where in the code tinc is inserting this route from.... which, as

How about, in your /etc/sysconfig/network file adding or editing the line for IPV6 to be: NETWORKING_IPV6=no and then try a 'service network restart' and see what you get. Chris On Mon, Mar 9, 2015 at 11:52 AM, Robert Moskowitz <rgm at htt-consult.com> wrote: > No change after running this and trying both: > > system network restart > > ifdown eth0; ifup eth0

On Tue, Aug 18, 2020 at 01:32:06AM +0200, Stefano Brivio wrote: > The check comes from commit 00d28a78b5d1 ("network: check accept_ra > before enabling ipv6 forwarding"), and it's there because the accept_ra > flag works like this (from Documentation/networking/ip-sysctl.txt): > > 0 Do not accept Router Advertisements. > 1 Accept Router Advertisements if

On 8/10/20 11:23 PM, Ian Wienand wrote: > Hello, > > Firstly THANK YOU for the IPv6 NAT support merged in 6.5. It has been > almost impossible to get IPv6 into a VM on a laptop that switches > between wifi and wired (dock) connections, because you can not add a > wifi interface to a bridge. I know NAT is against the IPv6 end-to-end > xen but it makes this "just

> On 03/09/2015 01:15 AM, Chris Stone wrote: >> >> sysctl -w net.ipv6.conf.all.accept_ra=0 On 03/10/2015 06:52 AM, Robert Moskowitz wrote: > No change after running this and trying both: > > system network restart it's: service network restart Try also setting these in sysctl: net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1

On Fri, Mar 04, 2016 at 09:43:44PM +0100, Guus Sliepen wrote: > - On Linux, add "echo 0 >/proc/sys/net/ipv6/conf/$INTERFACE/accept_ra" > to tinc-up before any ifconfig or ip commands. Ah, if it's only the default route you don't want, then it's: echo 0 >/proc/sys/net/ipv6/conf/$INTERFACE/accept_ra_defrtr -- Met vriendelijke groet / with kind regards,