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Fix multicast flag on linux interfaces.

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When we re-ordered the way the interfaces come up, this flag
stopped getting set automatically.

see 9374e45449
and github issue #1477
This commit is contained in:
Travis LaDuke 2021-11-02 11:15:10 -07:00
parent 3c7bd65bc9
commit 37f26beb50
2 changed files with 3 additions and 0 deletions
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2
RELEASE-NOTES.md
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@ -1,5 +1,7 @@
ZeroTier Release Notes ZeroTier Release Notes
====== ======
# 2021-11-00 -- Version 1.8.2
* Fix multicast on linux.
# 2021-10-28 -- Version 1.8.1 # 2021-10-28 -- Version 1.8.1

1
osdep/LinuxEthernetTap.cpp
View file

@ -213,6 +213,7 @@ LinuxEthernetTap::LinuxEthernetTap(
return; return;
} }
ifr.ifr_flags |= IFF_MULTICAST;
ifr.ifr_flags |= IFF_UP; ifr.ifr_flags |= IFF_UP;
if (ioctl(sock,SIOCSIFFLAGS,(void *)&ifr) < 0) { if (ioctl(sock,SIOCSIFFLAGS,(void *)&ifr) < 0) {
::close(sock); ::close(sock);