[Bug 6548] New: "route del" can't delete default routes

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=6548

           Summary: "route del" can't delete default routes
           Product: Busybox
           Version: 1.19.x
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Networking
        AssignedTo: unassigned at busybox.net
        ReportedBy: uros7272 at gmail.com
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


At the boot, dhcp client sets following routing table:

Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.2.6.1        0.0.0.0         UG    0      0        0 eth0
10.1.1.111      10.2.6.1        255.255.255.255 UGH   0      0        0 eth0
10.1.1.112      10.2.6.1        255.255.255.255 UGH   0      0        0 eth0
10.2.6.0        0.0.0.0         255.255.254.0   U     0      0        0 eth0
10.2.6.1        0.0.0.0         255.255.255.255 UH    0      0        0 eth0

Trying to delete default route with:

$ route del default gw 10.2.6.1 eth0

didn't succeed, the table still reads:

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         10.2.6.1        0.0.0.0         UG    0      0        0 eth0
10.1.1.111      10.2.6.1        255.255.255.255 UGH   0      0        0 eth0
10.1.1.112      10.2.6.1        255.255.255.255 UGH   0      0        0 eth0
10.2.6.0        0.0.0.0         255.255.254.0   U     0      0        0 eth0
10.2.6.1        0.0.0.0         255.255.255.255 UH    0      0        0 eth0

On a related note, similar route also can't be removed

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         0.0.0.0         0.0.0.0         U     0      0        0 eth1
10.0.0.0        0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth1

$ route del default eth1

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         0.0.0.0         0.0.0.0         U     0      0        0 eth1
10.0.0.0        0.0.0.0         255.255.255.0   U     0      0        0 eth1
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth1

(I have checked on Fedora 19 that its default routes can be removed without
problems using above commands.)

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