[Cerowrt-devel] frequency of RAs from 6relayd
dave.taht at gmail.com
Wed Jun 12 14:34:50 EDT 2013
There is kind of a conflict on RA handling between dnsmasq and 6relayd
going on - back in january, dnsmasq was "winning", and the default. Since
then the 6relayd stuff has evolved something considerable, and I have not
looked into changing things around, nor how they should be changed around.
Try disabling dnsmasq's RA handling.
On Wed, Jun 12, 2013 at 10:14 AM, Michael Richardson <mcr at sandelman.ca>wrote:
> I am seeing a problem where the IPv6 default on a number of systems
> that use RA to get it is going away on a regular basis. CeroWrt 3.8 is
> the source of RA and IPv6 default routes everywhere. A /48 is delegated
> (manually) from my ISP, and configured for each subnet.
> There is no way that I can see to specify or find out what the lifetime
> / frequency of the RAs are in the UI. In /etc/config/6relayd, I see:
> config server 'default'
> option rd 'server'
> option compat_ula '1'
> option always_assume_default '1'
> option fallback_relay 'ndp'
> list network 'VoIP'
> list network 'gw00'
> list network 'gw01'
> list network 'gw10'
> list network 'gw11'
> list network 'se00'
> list network 'services'
> list network 'sw00'
> list network 'sw10'
> list network 'trusted'
> It is my understanding that 6relayd is responsible for sending out RAs.
> On my desktop:
> obiwan-[~] mcr 10187 %sudo rdisc6 eth0
> Soliciting ff02::2 (ff02::2) on eth0...
> Hop limit : undefined ( 0x00)
> Stateful address conf. : Yes
> Stateful other conf. : Yes
> Router preference : medium
> Router lifetime : 1800 (0x00000708) seconds
> Reachable time : unspecified (0x00000000)
> Retransmit time : unspecified (0x00000000)
> Source link-layer address: 76:44:01:76:5D:CC
> MTU : 1500 bytes (valid)
> from fe80::7444:1ff:fe76:5dcc
> (5dcc is indeed my CeroWRT)
> while the router lifetime given is 30 minutes, I am wondering if
> something else is up. I would have thought I'd see a prefix advertised
> As my MP3 streamer one of the machines affected, when it loses it's IP,
> it either falls off of NFS or the TCP stream breaks, and things go
> I've ssh'ed into my MP3 server (over v4), and I'm running:
> watch ip -6 route ls
> and sudo tcpdump -i eth0 -n -p ip6 and icmp6
> in two windows.
> ] Never tell me the odds! | ipv6 mesh
> networks [
> ] Michael Richardson, Sandelman Software Works | network
> architect [
> ] mcr at sandelman.ca http://www.sandelman.ca/ | ruby on rails
> Cerowrt-devel mailing list
> Cerowrt-devel at lists.bufferbloat.net
Fixing bufferbloat with cerowrt:
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