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пятница, 8 февраля 2019 г.

How to remove all loopback from Cisco IOS configuration at once

Simple script to remove all loopbacks at one, e.g. especially if you created it with some other script as from here https://packetpushers.net/tcl-script-for-creating-many-loopback-interfaces/
or from here: https://blog.ine.com/2014/05/05/ios-random-ipv4-ipv6-route-generator-in-tcl

foreach line_a [split [ exec "sh ip int b | i Loopback" ] "\n"] { 
  if { [ regexp -inline {[0-9/.]+ } [ lindex $line_a 0 ] ] != "" } \
  { ios_config "no interface [ lindex $line_a 0 ]" } 
}

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