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Check neighbors for valid guest address when default lookup fails 

If the guest address is unavailable via Hyper-V inspection, extract
MAC address of network adapters and check neighbor information for
any currently matching known address.
This commit is contained in:
Chris Roberts 2018-04-26 12:53:52 -07:00
parent 2cdbb1eee7
commit d15ff38d5c
1 changed files with 33 additions and 21 deletions
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22
plugins/providers/hyperv/scripts/get_network_config.ps1
View File

@ -12,16 +12,28 @@ $networks = Hyper-V\Get-VMNetworkAdapter -VM $vm
foreach ($network in $networks) {
if ($network.IpAddresses.Length -gt 0) {
foreach ($ip_address in $network.IpAddresses) {
if ($ip_address.Contains(".") -And [string]::IsNullOrEmpty($ip4_address)) {
$ip4_address = $ip_address
} elseif ($ip_address.Contains(":") -And [string]::IsNullOrEmpty($ip6_address)) {
$ip6_address = $ip_address
}
}
}
}
# If no address was found in the network settings, check for
# neighbor with mac address and see if an IP exists
if (([string]::IsNullOrEmpty($ip4_address)) -And ([string]::IsNullOrEmpty($ip6_address))) {
$macaddresses = $vm | select -ExpandProperty NetworkAdapters | select MacAddress
foreach ($macaddr in $macaddresses) {
$macaddress = $macaddr.MacAddress -replace '(.{2})(?!$)', '${1}-'
$addr = Get-NetNeighbor -LinkLayerAddress $macaddress | select IPAddress
$ip_address = $addr.IPAddress
if ($ip_address.Contains(".")) {
$ip4_address = $ip_address
} elseif ($ip_address.Contains(":")) {
$ip6_address = $ip_address
}
if (-Not ([string]::IsNullOrEmpty($ip4_address)) -Or -Not ([string]::IsNullOrEmpty($ip6_address))) {
# We found our IP address!
break
}
}
}
}