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Merge pull request #114 from slackhq/mtu-optional

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Move tun mtu failing to an error log instead of fatal
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Nathan Brown 2019-12-18 16:57:40 -08:00 • committed by GitHub
commit b39fab3043
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1 changed files with 2 additions and 1 deletions
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3
tun_linux.go
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@ -187,7 +187,8 @@ func (c Tun) Activate() error {
// Set the MTU on the device
ifm := ifreqMTU{Name: devName, MTU: int32(c.MaxMTU)}
if err = ioctl(fd, unix.SIOCSIFMTU, uintptr(unsafe.Pointer(&ifm))); err != nil {
return fmt.Errorf("failed to set tun mtu: %s", err)
// This is currently a non fatal condition because the route table must have the MTU set appropriately as well
l.WithError(err).Error("Failed to set tun mtu")
}
// Set the transmit queue length