[Dnsmasq-discuss] No RA when router sollicitation sended

Daniel tech at tootai.net
Mon Mar 22 15:46:11 UTC 2021


Hi. Nobody on this ?

Le 18/03/2021 à 09:51, Daniel via Dnsmasq-discuss a écrit :
> Hello
>
> Le 18/03/2021 à 09:12, Geert Stappers via Dnsmasq-discuss a écrit :
>> On Wed, Mar 17, 2021 at 04:01:48PM +0100, Daniel via Dnsmasq-discuss 
>> wrote:
>>> Hi,
>>>
>>> I'm setting up a only ipv6 POC and face problem that dnsmasq soesn't 
>>> answer
>>> to router sollicitation. Here is the output of dnsmasq
>>>
>>> dnsmasq: started, version 2.84rc2 cachesize 2048
>>> dnsmasq: compile time options: IPv6 GNU-getopt DBus no-UBus no-i18n 
>>> IDN DHCP
>>> DHCPv6 Lua TFTP conntrack ipset auth cryptohash DNSSEC loop-detect 
>>> inotify
>>> dumpfile
>>> dnsmasq-dhcp: DHCP, IP range 192.168.12.190 -- 192.168.12.191, lease 
>>> time 2m
>>> dnsmasq-dhcp: DHCP, IP range 192.168.10.195 -- 192.168.10.199, lease 
>>> time 2m
>>> dnsmasq-dhcp: DHCP, IP range 192.168.210.100 -- 192.168.210.104, 
>>> lease time 2m
>>> dnsmasq-dhcp: DHCP, IP range 192.168.10.50 -- 192.168.10.54, lease 
>>> time 2m
>>> dnsmasq-dhcp: DHCPv4-derived IPv6 names on fd53:9b48:337:8b38::
>>> dnsmasq-dhcp: router advertisement on fd53:9b48:337:8b38::
>>> dnsmasq-dhcp: IPv6 router advertisement enabled
>>> dnsmasq-tftp: TFTP root is /tftpboot
>>> dnsmasq: reading /etc/resolvPrivate.conf
>>> dnsmasq: using nameserver 2001:db8:1298::#53
>>> dnsmasq: read /etc/hostsPrivate - 12 addresses
>>>
>>> ip -6 a lan (relevant part)
>>>      inet6 fd53:9b48:337:8b38::254/64 scope global
>>>         valid_lft forever preferred_lft forever
>>>      inet6 fe80::5054:ff:fe12:3511/64 scope link
>>>         valid_lft forever preferred_lft forever
>>>
>>> tcpdump output from a RS which never get answered
>>>
>>> 15:54:09.204222 IP6 (flowlabel 0x8f8d5, hlim 255, next-header ICMPv6 
>>> (58)
>>> payload length: 16) fe80::5054:ff:fee5:338a > ff02::2: [icmp6 sum 
>>> ok] ICMP6,
>>> router
>>> solicitation, length 16
>>>            source link-address option (1), length 8 (1): 
>>> 52:54:00:e5:33:8a
>>>              0x0000:  5254 00e5 338a
>>>
>>> I also tried with constructor in dnsmasq.conf like
>>>
>>> dhcp-range=::1,::ffff:ffff, constructor=lan*,ra-names,64,2m
>>>
>>> but no changes.
>>>
>>> Any clue ?
>> At least share with us if --enable-ra  is inplace.
>
> Yes, sorry.
>
> listen-address=127.0.0.1,::1,fd53:9b48:337:8b38::254,192.168.10.254,192.168.12.254,192.168.210.254 
>
> dhcp-range=set:computer,192.168.10.50,192.168.10.54,255.255.255.0,2m
> dhcp-range=set:computer6,fd53:9b48:337:8b38:ff9b::,ra-names,slaac,2m
> enable-ra
>
-- 
Daniel



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