diff --git a/.coveragerc b/.coveragerc
index dbf9e37f7f9b86621445fea518ed5b75f50bc411..09d06ec10821808de13c25bea1dcdde22dc8d4c7 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -144,6 +144,7 @@ omit =
homeassistant/components/device_tracker/bluetooth_le_tracker.py
homeassistant/components/device_tracker/bluetooth_tracker.py
homeassistant/components/device_tracker/bt_home_hub_5.py
+ homeassistant/components/device_tracker/cisco_ios.py
homeassistant/components/device_tracker/fritz.py
homeassistant/components/device_tracker/icloud.py
homeassistant/components/device_tracker/luci.py
diff --git a/homeassistant/components/device_tracker/cisco_ios.py b/homeassistant/components/device_tracker/cisco_ios.py
new file mode 100644
index 0000000000000000000000000000000000000000..0d42282b17ce80e9a9140453130e73e88b60a253
--- /dev/null
+++ b/homeassistant/components/device_tracker/cisco_ios.py
@@ -0,0 +1,162 @@
+"""
+Support for Cisco IOS Routers.
+
+For more details about this platform, please refer to the documentation at
+https://home-assistant.io/components/device_tracker.cisco_ios/
+"""
+import logging
+from datetime import timedelta
+
+import voluptuous as vol
+
+import homeassistant.helpers.config_validation as cv
+from homeassistant.components.device_tracker import DOMAIN, PLATFORM_SCHEMA
+from homeassistant.const import CONF_HOST, CONF_PASSWORD, CONF_USERNAME, \
+ CONF_PORT
+from homeassistant.util import Throttle
+
+# Return cached results if last scan was less then this time ago.
+MIN_TIME_BETWEEN_SCANS = timedelta(seconds=5)
+
+_LOGGER = logging.getLogger(__name__)
+
+REQUIREMENTS = ['pexpect==4.0.1']
+
+PLATFORM_SCHEMA = vol.All(
+ PLATFORM_SCHEMA.extend({
+ vol.Required(CONF_HOST): cv.string,
+ vol.Required(CONF_USERNAME): cv.string,
+ vol.Optional(CONF_PASSWORD, default=''): cv.string,
+ vol.Optional(CONF_PORT): cv.port,
+ })
+)
+
+
+def get_scanner(hass, config):
+ """Validate the configuration and return a Cisco scanner."""
+ scanner = CiscoDeviceScanner(config[DOMAIN])
+
+ return scanner if scanner.success_init else None
+
+
+class CiscoDeviceScanner(object):
+ """This class queries a wireless router running Cisco IOS firmware."""
+
+ def __init__(self, config):
+ """Initialize the scanner."""
+ self.host = config[CONF_HOST]
+ self.username = config[CONF_USERNAME]
+ self.port = config.get(CONF_PORT)
+ self.password = config.get(CONF_PASSWORD)
+
+ self.last_results = {}
+
+ self.success_init = self._update_info()
+ _LOGGER.info('cisco_ios scanner initialized')
+
+ # pylint: disable=no-self-use
+ def get_device_name(self, device):
+ """The firmware doesn't save the name of the wireless device."""
+ return None
+
+ def scan_devices(self):
+ """Scan for new devices and return a list with found device IDs."""
+ self._update_info()
+
+ return self.last_results
+
+ @Throttle(MIN_TIME_BETWEEN_SCANS)
+ def _update_info(self):
+ """
+ Ensure the information from the Cisco router is up to date.
+
+ Returns boolean if scanning successful.
+ """
+ string_result = self._get_arp_data()
+
+ if string_result:
+ self.last_results = []
+ last_results = []
+
+ lines_result = string_result.splitlines()
+
+ # Remove the first two lines, as they contains the arp command
+ # and the arp table titles e.g.
+ # show ip arp
+ # Protocol Address | Age (min) | Hardware Addr | Type | Interface
+ lines_result = lines_result[2:]
+
+ for line in lines_result:
+ if len(line.split()) is 6:
+ parts = line.split()
+ if len(parts) != 6:
+ continue
+
+ # ['Internet', '10.10.11.1', '-', '0027.d32d.0123', 'ARPA',
+ # 'GigabitEthernet0']
+ age = parts[2]
+ hw_addr = parts[3]
+
+ if age != "-":
+ mac = _parse_cisco_mac_address(hw_addr)
+ age = int(age)
+ if age < 1:
+ last_results.append(mac)
+
+ self.last_results = last_results
+ return True
+
+ return False
+
+ def _get_arp_data(self):
+ """Open connection to the router and get arp entries."""
+ from pexpect import pxssh
+ import re
+
+ try:
+ cisco_ssh = pxssh.pxssh()
+ cisco_ssh.login(self.host, self.username, self.password,
+ port=self.port, auto_prompt_reset=False)
+
+ # Find the hostname
+ initial_line = cisco_ssh.before.decode('utf-8').splitlines()
+ router_hostname = initial_line[len(initial_line) - 1]
+ router_hostname += "#"
+ # Set the discovered hostname as prompt
+ regex_expression = ('(?i)^%s' % router_hostname).encode()
+ cisco_ssh.PROMPT = re.compile(regex_expression, re.MULTILINE)
+ # Allow full arp table to print at once
+ cisco_ssh.sendline("terminal length 0")
+ cisco_ssh.prompt(1)
+
+ cisco_ssh.sendline("show ip arp")
+ cisco_ssh.prompt(1)
+
+ devices_result = cisco_ssh.before
+
+ return devices_result.decode("utf-8")
+ except pxssh.ExceptionPxssh as px_e:
+ _LOGGER.error("pxssh failed on login.")
+ _LOGGER.error(px_e)
+
+ return None
+
+
+def _parse_cisco_mac_address(cisco_hardware_addr):
+ """
+ Parse a Cisco formatted HW address to normal MAC.
+
+ e.g. convert
+ 001d.ec02.07ab
+
+ to:
+ 00:1D:EC:02:07:AB
+
+ Takes in cisco_hwaddr: HWAddr String from Cisco ARP table
+ Returns a regular standard MAC address
+ """
+ cisco_hardware_addr = cisco_hardware_addr.replace('.', '')
+ blocks = [cisco_hardware_addr[x:x + 2]
+ for x in range(0, len(cisco_hardware_addr), 2)]
+
+ return ':'.join(blocks).upper()
diff --git a/requirements_all.txt b/requirements_all.txt
index 4d759beae1c418ffec37e00fedb0604c82a26cd6..409abeaac3c383da6887f834f204eb8ddcb46e55 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -294,6 +294,7 @@ panasonic_viera==0.2
# homeassistant.components.device_tracker.aruba
# homeassistant.components.device_tracker.asuswrt
+# homeassistant.components.device_tracker.cisco_ios
# homeassistant.components.media_player.pandora
pexpect==4.0.1