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    ipv6 rule created with a /32 causes host connectivity issues

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    • S
      shem.valentine
      last edited by

      When using IPv6 I lose connectivity on the host interface when adding an IPv6 address to a dataplane interface.

      Running tcpdump shows ping requests inbound, but the reply is going out vpp1.

      Looking at the ip rules, there is a rule with the source address of the dataplane interface and a /32 bitmask. I imagine this is meant to be a /128.

      [root@tnsr ~]# ip -6 rule list
      0:	from all lookup local 
      1000:	from all to fd00:0:0:1::105/64 lookup main 
      5000:	from fd00:0:0:1::105/32 lookup 75 
      32766:	from all lookup main
      
      [root@tnsr ~]# ip -6 route show table 75
      default via fe80::6 dev vpp1 metric 1024 pref medium
      
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      • E
        eeraltan
        last edited by

        Hi Shem,

        Thanks for bringing this to our attention. As we have been discussing over email, we have reproduced the issue and working on it.

        Emre

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