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Always pad mac addresses from nmap tracker with leading zeros (#23492)
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@ -47,7 +47,7 @@ def _arp(ip_address):
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out, _ = arp.communicate()
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match = re.search(r'(([0-9A-Fa-f]{1,2}\:){5}[0-9A-Fa-f]{1,2})', str(out))
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if match:
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return match.group(0)
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return ':'.join([i.zfill(2) for i in match.group(0).split(':')])
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_LOGGER.info('No MAC address found for %s', ip_address)
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return None
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