download isismon.pl

the script logs in to some router and fetches the isis-database
and compares with a saved one 5 minutes earlier to see if
there are any missing or any new, if missing the script parses
the corresponding saved routerconfig to show the interfacedata
and if the route is new it logs in to that router to get interfacedata,
the user must have login in all the routers in the network to work.
Whenever the script finds missing/added routes it sends a mail, like this:

From: some@emailadress.se
To: receiving@emailadress.se
Subject: isis -2 rts 


-- subnet 130.242.53.0/26 REMOVED from KTHNOC-2, affected interfaces/peers etc: --

!
interface FastEthernet4/6
 description ModernaMuseet, sunet-moderna
 ip address 130.242.53.62 255.255.255.192
------------------------------------------------------------------------

-- subnet 130.242.34.0/24 REMOVED from KTHNOC-1, affected interfaces/peers etc: --

!
interface FastEthernet1/5
 description Arkitekturmuseet, sunet-arktmus
 ip address 130.242.34.254 255.255.255.0
------------------------------------------------------------------------

or if there are added routes it mixes these with the removed during
the same interval