address: support IPv4/IPv6 dual bind. (#332)

Signed-off-by: Harvey Tuch <htuch@google.com>
7 years ago · 893b9706a1
parent 4fa7c1607b
commit 893b9706a1
1 changed files with 6 additions and 0 deletions
--- a/api/address.proto
+++ b/api/address.proto
@ -44,6 +44,12 @@ message SocketAddress {
  // should be set for resolution other than DNS. If the address is a concrete
  // IP address, no resolution will occur.
  string resolver_name = 5;
+
+  // When binding to an IPv6 address above, this enables `IPv4 compatibity
+  // <https://tools.ietf.org/html/rfc3493#page-11>`_. Binding to ``::`` will
+  // allow both IPv4 and IPv6 connections, with peer IPv4 addresses mapped into
+  // IPv6 space as ``::FFFF:<IPv4-address>``.
+  bool ipv4_compat = 6;
 }

 message BindConfig {