Opened 10 years ago

Last modified 2 years ago

#9594 new bug

[net_server] IPv6 Link Local prevents proper interface deletion

Reported by: diver Owned by: kallisti5
Priority: normal Milestone: R1.1
Component: Servers/net_server Version: R1/Development
Keywords: Cc: shade
Blocked By: Blocking: #11276
Platform: All

Description

This is hrev45432.

ifconfig del /dev/net/ipro1000/0 

deletes the interface from ifconfig, but leaves it in net_device_interfaces list. So if one tries to bring back the interface he will get an error:

ifconfig /dev/net/ipro1000/0 up
ifconfig: Couldn't add interface: General system error

Removing /system/add-ons/kernel/network/protocols/ipv6 module or commenting out _ConfigureIPv6LinkLocal fixes it.

Change History (10)

comment:1 by kallisti5, 10 years ago

Thanks for catching this one... looking into it now.

comment:2 by diver, 10 years ago

Deleting the ipv4 and ipv6 address from the interface prior to deleting it itself doesn't help.

~> ifconfig /dev/net/ipro1000/0
/dev/net/ipro1000/0
        Hardware type: Ethernet, Address: 08:00:27:b8:ae:41
        Media type: 1 GBit, 1000BASE-T
        inet addr: 10.0.2.15, Bcast: 10.0.2.255, Mask: 255.255.255.0
        inet6 addr: fe80::a00:27ff:feb8:ae41, Bcast: ffff:ffff:ffff:ffff::, Prefix Length: 64
        MTU: 1500, Metric: 0, up broadcast link auto-configured
        Receive: 5 packets, 0 errors, 1872 bytes, 0 mcasts, 0 dropped
        Transmit: 5 packets, 0 errors, 824 bytes, 0 mcasts, 0 dropped
        Collisions: 0

~> ifconfig del /dev/net/ipro1000/0 10.0.2.15
~> ifconfig del /dev/net/ipro1000/0 fe80::a00:27ff:feb8:ae41

~> ifconfig /dev/net/ipro1000/0
/dev/net/ipro1000/0
        Hardware type: Ethernet, Address: 08:00:27:b8:ae:41
        Media type: 1 GBit, 1000BASE-T
        MTU: 1500, Metric: 0, up broadcast link auto-configured
        Receive: 5 packets, 0 errors, 1872 bytes, 0 mcasts, 0 dropped
        Transmit: 5 packets, 0 errors, 824 bytes, 0 mcasts, 0 dropped
        Collisions: 0

~> ifconfig del /dev/net/ipro1000/0
~> ifconfig /dev/net/ipro1000/0 up
ifconfig: Could not add interface: General system error

~> ifconfig /dev/net/ipro1000/0
/dev/net/ipro1000/0
        Hardware type: Ethernet, Address: 08:00:27:b8:ae:41
        MTU: 0, Metric: 0

comment:3 by diver, 10 years ago

Blocking: 9695 added

comment:4 by kallisti5, 10 years ago

I'm thinking of disabling the local link stuff.. our v6 stack just isn't ready yet. i'm even seeing a local link route with a prefix of -2147454933 in route.

comment:5 by kallisti5, 10 years ago

I disabled the link local address in hrev45736 for now. Since we lack v6 address scope, it seems to cause more problems than solve at the moment.

Last edited 10 years ago by kallisti5 (previous) (diff)

comment:6 by diver, 10 years ago

Note that ::/-2147454933 loop, host local is still there in hrev45736.

comment:7 by diver, 10 years ago

Blocking: 9695 removed

(In #9695) Still here in hrev45736.

in reply to:  6 comment:8 by kallisti5, 10 years ago

Replying to diver:

Note that ::/-2147454933 loop, host local is still there in hrev45736.

The main reason I decided to disable it. If we can't seem to get the loopback correct... the local link up is a little early :)

I have native IPv6 on my home network again, so I'm going to see if I can figure out whats going on here.

comment:9 by diver, 8 years ago

Blocking: 11276 added

(In #11276) Ok then :)

comment:10 by pulkomandy, 2 years ago

Milestone: R1R1.1
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