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wgengine/filter: don't spam logs on dropped outgoing IPv6 ICMP or IPv4 IGMP

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The OS (tries) to send these but we drop them. No need to worry the
user with spam that we're dropping it.

Fixes #402

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2020-07-28 22:10:58 -07:00
committed by Brad Fitzpatrick
parent c7582dc234
commit d96d26c22a
3 changed files with 65 additions and 13 deletions
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wgengine/packet/ip.go
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@ -47,6 +47,7 @@ const (
// Unknown represents an unknown or unsupported protocol; it's deliberately the zero value.
Unknown IPProto = 0x00
ICMP IPProto = 0x01
IGMP IPProto = 0x02
ICMPv6 IPProto = 0x3a
TCP IPProto = 0x06
UDP IPProto = 0x11