TheArchive/tailscale
1
0
Fork 0
mirror of https://github.com/tailscale/tailscale.git synced 2025-08-25 12:47:31 +00:00
Code Issues Packages Projects Releases Wiki Activity

wgengine/router: delete hardcoded link-local address on Windows (#4740)

Browse Source 
Fixes #4647

It seems that Windows creates a link-local address for the TUN driver, seemingly
based on the (fixed) adapter GUID. This results in a fixed MAC address, which
for some reason doesn't handle loopback correctly. Given the derived link-local
address is preferred for lookups (thanks LLMNR), traffic which addresses the
current node by hostname uses this broken address and never works.

To address this, we remove the broken link-local address from the wintun adapter.

Signed-off-by: Tom DNetto <tom@tailscale.com>
This commit is contained in:
Tom
2022-05-27 14:42:55 -07:00
committed by GitHub
parent b005b79236
commit 2903d42921
2 changed files with 17 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
wgengine/router/ifconfig_windows_test.go
View File

@@ -164,8 +164,9 @@ func TestDeltaNets(t *testing.T) {
wantDel: nets("fe80::99d0:ec2d:b2e7:536b/64"),
},
{
a: excludeIPv6LinkLocal(nets("100.84.36.11/32", "fe80::99d0:ec2d:b2e7:536b/64")),
b: nets("100.84.36.11/32"),
a: excludeIPv6LinkLocal(nets("100.84.36.11/32", "fe80::99d0:ec2d:b2e7:536b/64")),
b: nets("100.84.36.11/32"),
wantDel: nets("fe80::99d0:ec2d:b2e7:536b/64"),
},
{
a: []*net.IPNet{