[Dnsmasq-discuss] dnsmasq not responding to RS

Simon Kelley simon at thekelleys.org.uk
Mon May 20 14:11:38 BST 2013


On 18/05/13 19:49, Ma Ruxiao wrote:
> I'm trying to use dnsmasq with IPv6 support to gain IPv6 access behind the router.
>
> My router is running OpenWrt with Dnsmasq 2.62:
>
> Dnsmasq version 2.62  Copyright (c) 2000-2012 Simon Kelley
> Compile time options: IPv6 GNU-getopt no-DBus no-i18n no-IDN DHCP DHCPv6 no-Lua TFTP no-conntrack
>
> conf file:
>
> /var/etc/dnsmasq.conf:
>
> conf-file=/etc/dnsmasq.conf
> dhcp-authoritative
> domain-needed
> log-queries
> localise-queries
> read-ethers
> bogus-priv
> expand-hosts
> domain=lan
> server=/lan/
> dhcp-leasefile=/tmp/dhcp.leases
> resolv-file=/tmp/resolv.conf.auto
>
> dhcp-range=lan,10.224.19.136,10.224.39.15,255.224.0.0,12h
> no-dhcp-interface=eth0.2
>
> /etc/dnsmasq.conf:
>
> dhcp-range=2001:da8:205:406a::, slaac
> enable-ra
> log-dhcp
>
> Interfaces:
> br-lan is the internal network
> eth0.2 is the external network
>
> Now I can see from the log that dnsmasq is receiving RS:
>
> May 19 02:35:06 OpenWrt-DreamBox daemon.info dnsmasq-dhcp[13818]: RTR-SOLICIT(br-lan) b8:f6:b1:16:e3:37
>
> but I never get any RA reply. However the periodic RA towards the external network works fine:
>
> May 19 02:35:14 OpenWrt-DreamBox daemon.info dnsmasq-dhcp[13818]: RTR-ADVERT(eth0.2) 2001:da8:205:406a::
>
> Are there something wrong with my config file?
>


What IPv6 addresses are associated with the two interfaces?

Simon.





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