[j-nsp] JUNOS and 128.0.0.0 martian (JFYI)

Tarique A. Nalkhande - BMC t.nalkhande.bmc at mobily.com.sa
Mon Oct 10 14:19:23 EDT 2011


So with 128/16 going live, Juniper may also additionally need to change their internal addressing! 

re0> show interfaces em1 terse              
Interface               Admin Link Proto    Local                 Remote
em1                     up    up  
em1.0                   up    up   inet     10.0.0.1/8      
                                            10.0.0.4/8      
                                            128.0.0.1/2   <<--  
                                            128.0.0.4/2   <<--

MX96-01_re0> show interfaces em0 terse    
Interface               Admin Link Proto    Local                 Remote
em0                     up    up  
em0.0                   up    up   inet     10.0.0.1/8      
                                            10.0.0.4/8      
                                            128.0.0.1/2    <<-- 
                                            128.0.0.4/2    <<--

re0> show route 128.0.0.0/2 table __juniper_private1__.inet.0 
__juniper_private1__.inet.0: 6 destinations, 10 routes (4 active, 0 holddown, 2 hidden)
+ = Active Route, - = Last Active, * = Both

128.0.0.0/2        *[Direct/0] 31w6d 05:05:46
                    > via em0.0
                    [Direct/0] 31w6d 05:05:46
                    > via em0.0
                    [Direct/0] 31w6d 05:05:46
                    > via em1.0
                    [Direct/0] 31w6d 05:05:46
                    > via em1.0

Thanks & Regards
Tarique Abbas Nalkhande

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