<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hi, Simon:<div><br></div><div>Is it possible that we can launch dnsmasq as DHCPv6 Stateless server WITHOUT sending RA? I tried the following configuration, but I still saw RA initiated from dnsmasq even “—enable-ra” was omitted.</div><div><br></div><div><span style="font-family: Calibri, sans-serif; font-size: 14px;">nobody 16448 1 0 23:57 ? 00:00:00 dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces --leasefile-ro --port=0 --dhcp-range=set:tag1,2001:db8:2::,ra-stateless,86400s --dhcp-optsfile=/var/lib/app/dhcp/46317bbc-3433-4549-874e-e5fce2344552/opts --interface=qr-8bea4d00-4e --listen-address=2001:db8:2::1 --pid-file=/var/lib/app/dhcp/46317bbc-3433-4549-874e-e5fce2344552/ipv6pid</span></div><div><br></div><div><div>00:28:28.802449 IP6 (class 0xc0, hlim 255, next-header ICMPv6 (58) payload length: 112) fe80::f816:3eff:fe97:7523 > ff02::1: [icmp6 sum ok] ICMP6, router advertisement, length 112</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>hop limit 64, Flags [other stateful], pref medium, router lifetime 1800s, reachable time 0s, retrans time 0s</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> prefix info option (3), length 32 (4): 2001:db8:2::/64, Flags [onlink, auto], valid time 86400s, pref. time 86400s</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0000: 40c0 0001 5180 0001 5180 0000 0000 2001</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0010: 0db8 0002 0000 0000 0000 0000 0000</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> mtu option (5), length 8 (1): 1500</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0000: 0000 0000 05dc</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> source link-address option (1), length 8 (1): fa:16:3e:97:75:23</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0000: fa16 3e97 7523</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> dnssl option (31), length 24 (3): lifetime 86400s, domain(s): <a href="http://sandbox.com">sandbox.com</a>.</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0000: 0000 0001 5180 0773 616e 6462 6f78 0363</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0010: 6f6d 0000 0000</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> rdnss option (25), length 24 (3): lifetime 86400s, addr: 2001:4860:4860::8888</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0000: 0000 0001 5180 2001 4860 4860 0000 0000</div><div><span class="Apple-tab-span" style="white-space:pre"> </span> 0x0010: 0000 0000 8888</div></div><div><br></div><div><br></div><div>In the previous thread, you mention that there is no separate control for RA announcement. So I am wondering whether it is doable. The use case I am dealing with is that, RA will be announced by physical router on the same wire and VM will retrieve optional info from dnsmasq.</div><div><br></div><div>If RA cannot be suppressed, then I am thinking the only option left is to set the RA priority to LOW so physical router’s RA can be preferred….What do you think?</div><div><br></div><div>Thanks in advance!</div><div><br></div><div>Shixiong</div></body></html>