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-rw-r--r--proposals/ideas/xxx-ipv6-plan.txt11
1 files changed, 9 insertions, 2 deletions
diff --git a/proposals/ideas/xxx-ipv6-plan.txt b/proposals/ideas/xxx-ipv6-plan.txt
index 26a0359..f88c0b0 100644
--- a/proposals/ideas/xxx-ipv6-plan.txt
+++ b/proposals/ideas/xxx-ipv6-plan.txt
@@ -41,8 +41,15 @@ What needs to change:
dual stack of both IPv4 and IPv6 for interconnection seems like a
reasonable step towards a fully hybrid v4/v6 Tor network.
- Of course, more issues may be discovered as we develop solutions for these
- issues, some of which may need to take priority.
+ One implementation hurdle that will need to get resolved alongside
+ these changes is to convert uint32_t to tor_addr_t in many more places
+ in the Tor code, so we can handle addresses being either IPv4 or IPv6.
+ There are a few cases, e.g. the local router list, where we'll want
+ to think harder about the resource requirements of keeping tens of
+ thousands of larger addresses in memory.
+
+ More issues may of course also be discovered as we develop solutions
+ for these issues, some of which may need to take priority.
Designs that we will need to do: