NAME

       Smokeping::probes::TelnetIOSPing - Cisco IOS Probe for SmokePing

SYNOPSIS

        *** Probes ***

        +TelnetIOSPing

        forks = 5
        offset = 50%
        packetsize = 56
        step = 300
        timeout = 15

        # The following variables can be overridden in each target section
        iospass = password # mandatory
        iosuser = user # mandatory
        pings = 5
        psource = 192.168.2.129
        source = 192.168.2.1 # mandatory
        vrf = VRF1

        # [...]

        *** Targets ***

        probe = TelnetIOSPing # if this should be the default probe

        # [...]

        + mytarget
        # probe = TelnetIOSPing # if the default probe is something else
        host = my.host
        iospass = password # mandatory
        iosuser = user # mandatory
        pings = 5
        psource = 192.168.2.129
        source = 192.168.2.1 # mandatory
        vrf = VRF1

DESCRIPTION

       Integrates Cisco IOS as a probe into smokeping.  Uses the telnet protocol to run a ping
       from an IOS device (source) to another device (host).  This probe basically uses the
       "extended ping" of the Cisco IOS.  You have the option to specify which interface the ping
       is sourced from as well.

VARIABLES

       Supported probe-specific variables:

       forks
           Run this many concurrent processes at maximum

           Example value: 5

           Default value: 5

       offset
           If you run many probes concurrently you may want to prevent them from hitting your
           network all at the same time. Using the probe-specific offset parameter you can change
           the point in time when each probe will be run. Offset is specified in % of total
           interval, or alternatively as 'random', and the offset from the 'General' section is
           used if nothing is specified here. Note that this does NOT influence the rrds itself,
           it is just a matter of when data acqusition is initiated.  (This variable is only
           applicable if the variable 'concurrentprobes' is set in the 'General' section.)

           Example value: 50%

       packetsize
           The (optional) packetsize option lets you configure the packetsize for the pings sent.

           Default value: 56

       step
           Duration of the base interval that this probe should use, if different from the one
           specified in the 'Database' section. Note that the step in the RRD files is fixed when
           they are originally generated, and if you change the step parameter afterwards, you'll
           have to delete the old RRD files or somehow convert them. (This variable is only
           applicable if the variable 'concurrentprobes' is set in the 'General' section.)

           Example value: 300

       timeout
           How long a single 'ping' takes at maximum

           Example value: 15

           Default value: 5

       Supported target-specific variables:

       iospass
           The iospass option allows you to specify the password for the username specified with
           the option iosuser.

           Example value: password

           This setting is mandatory.

       iosuser
           The iosuser option allows you to specify a username that has ping capability on the
           IOS Device.

           Example value: user

           This setting is mandatory.

       pings
           How many pings should be sent to each target, if different from the global value
           specified in the Database section. Note that the number of pings in the RRD files is
           fixed when they are originally generated, and if you change this parameter afterwards,
           you'll have to delete the old RRD files or somehow convert them.

           Example value: 5

       psource
           The (optional) psource option specifies an alternate IP address or Interface from
           which you wish to source your pings from.  Routers can have many many IP addresses,
           and interfaces.  When you ping from a router you have the ability to choose which
           interface and/or which IP address the ping is sourced from.  Specifying an
           IP/interface does not necessarily specify the interface from which the ping will
           leave, but will specify which address the packet(s) appear to come from.  If this
           option is left out the IOS Device will source the packet automatically based on
           routing and/or metrics.  If this doesn't make sense to you then just leave it out.

           Example value: 192.168.2.129

       source
           The source option specifies the IOS device to which we telnet.  This is an IP address
           of an IOS Device that you/your server:      1)  Have the ability to telnet to      2)
           Have a valid username and password for

           Example value: 192.168.2.1

           This setting is mandatory.

       vrf The vrf option allows you to specify the vrf for ping

           Example value: VRF1

AUTHORS

       John A Jackson <geonjay@infoave.net>

       based HEAVILY on Smokeping::probes::IOSPing by

       Paul J Murphy <paul@murph.org>

       based on Smokeping::probes::FPing by

       Tobias Oetiker <tobi@oetiker.ch>

NOTES

   IOS configuration
       The IOS device should have a username/password configured, as well as the ability to
       connect to the VTY(s).  eg:

           !
           username smokeping privilege 5 password 0 SmokepingPassword
           !
           line vty 0 4
            login local
            transport input telnet
           !

       Some IOS devices have a maximum of 5 VTYs available, so be careful not to hit a limit with
       the 'forks' variable.

   Requirements
       This module requires the Net::Telnet module for perl.  This is usually included on most
       newer OSs which include perl.

   Debugging
       There is some VERY rudimentary debugging code built into this module (it's based on the
       debugging code written into Net::Telnet).  It will log information into three files
       "TIPreturn", "TIPoutlog", and "TIPdump".  These files will be written out into your
       current working directory (CWD).  You can change the names of these files to something
       with more meaning to you.

   Password authentication
       You should be advised that the authentication method of telnet uses clear text
       transmissions...meaning that without proper network security measures someone could sniff
       your username and password off the network.  I may attempt to incorporate SSH in a future
       version of this module, but it is very doubtful.  Right now SSH adds a LOT of processing
       overhead to a router, and isn't incredibly easy to implement in perl.

       Having said this, don't be too scared of telnet.  Remember, the original IOSPing module
       used RSH, which is even more scary to use from a security perspective.

   Ping packet size
       The FPing manpage has the following to say on the topic of ping packet size:

       Number of bytes of ping data to send.  The minimum size (normally 12) allows room for the
       data that fping needs to do its work (sequence number, timestamp).  The reported received
       data size includes the IP header (normally 20 bytes) and ICMP header (8 bytes), so the
       minimum total size is 40 bytes.  Default is 56, as in ping. Maximum is the theoretical
       maximum IP datagram size (64K), though most systems limit this to a smaller, system-
       dependent number.