[j-nsp] cgnat on service module - interesting bgp advertisements

[Aaron]

Very interesting. anyone know why this is happening ?  Is this documented ?
I put a /25 as the public nat pool, but look what this mx104 is advertising
via bgp.. It appears to chop up that /25 into a bunch of smaller subnets and
advertise those out

 

 

agould at eng-lab-mx104-cgn> show configuration | grep 1.2.3. | display set

set services nat pool nat1 address 1.2.3.128/25

 

 

agould at eng-lab-mx104-cgn> show route advertising-protocol bgp 10.101.0.2
table one.inet.0

 

one.inet.0: 782 destinations, 970 routes (782 active, 0 holddown, 0 hidden)

  Prefix                  Nexthop              MED     Lclpref    AS path

* 10.144.2.4/30           Self                         100        I

* 1.2.3.129/32         Self                         100        I

* 1.2.3.130/31         Self                         100        I

* 1.2.3.132/30         Self                         100        I

* 1.2.3.136/29         Self                         100        I

* 1.2.3.144/28         Self                         100        I

* 1.2.3.160/27         Self                         100        I

* 1.2.3.192/27         Self                         100        I

* 1.2.3.224/28         Self                         100        I

* 1.2.3.240/29         Self                         100        I

* 1.2.3.248/30         Self                         100        I

* 1.2.3.252/31         Self                         100        I

* 1.2.3.254/32         Self                         100        I

 

 

Aaron