misc/77341: IPV6 impementation

[subhajit]

>Number:         77341
>Category:       misc
>Synopsis:       IPV6  impementation
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Feb 10 10:40:12 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     subhajit
>Release:        5.3
>Organization:
IXIA CM
>Environment:
FreeBSD IxSubhajit2.ixiacom.com 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov  5 04:19:18 UTC 2004     root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
  
>Description:
      Had Following problem in IPV6 imlementation 

 | Linux |-<eth1>------------------<rl0>-| FREE BSD |

Sent an ping6 request from Linux to FreeBSD

Got Ping Echo Reply

Now deleted the interface IPV6 adrress from the FREEBSD Cache by 

# ndp -d <ipb6AddressOfLinuxEth1>%rl0

Then send continuous ping request ( Echo request from linux , eth1 ) to FreeBSD

FreeBSD not sending any neighbor soliciation message.

Finally no Ping Reply back msg from FREEBSD to Linux.

Conclusion : FreeBSD is not initiating Neighbor solicition message in response to ICMPV6 Echo request if Neighbor cache is empty.
>How-To-Repeat:
            Had Following problem in IPV6 imlementation 

 | Linux |-<eth1>------------------<rl0>-| FREE BSD |

Sent an ping6 request from Linux to FreeBSD

Got Ping Echo Reply

Now deleted the interface IPV6 adrress from the FREEBSD Cache by 

# ndp -d <ipb6AddressOfLinuxEth1>%rl0

Then send continuous ping request ( Echo request from linux , eth1 ) to FreeBSD

FreeBSD not sending any neighbor soliciation message.

Finally no Ping Reply back msg from FREEBSD to Linux.

Conclusion : FreeBSD is not initiating Neighbor solicition message in response to ICMPV6 Echo request if Neighbor cache is empty.
>Fix:
      not sure about the work around
>Release-Note:
>Audit-Trail:
>Unformatted: