From 463a9cbef81c9f7eeacfcb6c2a1df5f0a2974fa2 Mon Sep 17 00:00:00 2001 From: Darien Raymond Date: Mon, 2 Jul 2018 22:22:04 +0200 Subject: [PATCH] tweak dns options --- app/dns/udpns.go | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/app/dns/udpns.go b/app/dns/udpns.go index f4231cbcb..e8251a83a 100644 --- a/app/dns/udpns.go +++ b/app/dns/udpns.go @@ -173,17 +173,18 @@ func (s *ClassicNameServer) getMsgOptions() *dns.OPT { o := new(dns.OPT) o.Hdr.Name = "." o.Hdr.Rrtype = dns.TypeOPT - o.SetUDPSize(1280) + o.SetUDPSize(1350) e := new(dns.EDNS0_SUBNET) e.Code = dns.EDNS0SUBNET if len(s.clientIP) == 4 { - e.Family = 1 // 1 for IPv4 source address, 2 for IPv6 + e.Family = 1 // 1 for IPv4 source address, 2 for IPv6 + e.SourceNetmask = 24 // 32 for IPV4, 128 for IPv6 } else { e.Family = 2 + e.SourceNetmask = 96 } - e.SourceNetmask = 24 // 32 for IPV4, 128 for IPv6 e.SourceScope = 0 e.Address = s.clientIP o.Option = append(o.Option, e)