kern/155772: ifconfig: ioctl (SIOCAIFADDR): File exists on directly connected networks

[Alexey Samoylov]

>Number:         155772
>Category:       kern
>Synopsis:       ifconfig: ioctl (SIOCAIFADDR): File exists on directly connected networks
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Mar 22 05:00:02 UTC 2011
>Closed-Date:
>Last-Modified:
>Originator:     Alexey Samoylov
>Release:        8.2-RELEASE
>Organization:
SigmaTelecom Ltd
>Environment:
FreeBSD svm.sigma24.ru 8.2-RELEASE FreeBSD 8.2-RELEASE #2 r219081M: Wed Mar  2 10:30:04 CET 2011     root at www4:/usr/obj/usr/src_v28/sys/GENERIC  amd64

>Description:
ifconfig inet command doesn't install "directly connected" route if this route is already in routing table with other flags. In my case I use quagga for redistributing connected routes:

svm.sigma24.ru# show ip route 83.143.32.32/28
Routing entry for 83.143.32.32/28
  Known via "ospf", distance 110, metric 20, best
  Last update 00:26:50 ago
  * 83.143.32.9, via vlan4

svm# ifconfig vlan6 create
svm# ifconfig vlan6
vlan6: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
        options=3<RXCSUM,TXCSUM>
        ether 00:1b:21:93:ba:85
        inet 83.143.32.43 netmask 0xfffffff0 broadcast 83.143.32.47
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        vlan: 6 parent interface: igb7
svm# route get 83.143.32.32/28
   route to: 83.143.32.32
destination: 83.143.32.32
       mask: 255.255.255.240
    gateway: br2
  interface: vlan4
      flags: <UP,GATEWAY,DONE,PROTO1>
 recvpipe  sendpipe  ssthresh  rtt,msec    mtu        weight    expire
       0         0         0         0      1500         1         0
svm# ifconfig vlan6 delete
svm# ifconfig vlan6 inet 83.143.32.43 netmask 0xfffffff0 broadcast 83.143.32.47
ifconfig: ioctl (SIOCAIFADDR): File exists

>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: