DragonFlyBSD

Fixed! Thanks!

On Fri, Feb 12, 2016 at 4:14 AM,
<bugtracker-admin@leaf.dragonflybsd.org> wrote:

Issue #2888 has been reported by ygrossel.

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Bug #2888: ifconfig command bug with IPv6 addresses
http://bugs.dragonflybsd.org/issues/2888

• Author: ygrossel
• Status: New
• Priority: Normal
• Assignee:
• Category: Userland
• Target version:
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  Hello,

I think there is a bug in the ifconfig command regarding IPv6 addresses. Any attempt to remove a IPv6 address from an interface using ifconfig fails with the message:
ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address

How to reproduce:

- add an IPv6 address to some interface using ifconfig alias
- then try to remove that address using ifconfig alias
it fails with the error message.

For example:

1. ifconfig vke0 | grep inet6
   inet6 fe80::2be:dfff:fedf:804%vke0 prefixlen 64 scopeid 0x1

1. ifconfig vke0 inet6 alias 2001:db8::1/64

1. ifconfig vke0 | grep inet6
   inet6 fe80::2be:dfff:fedf:804%vke0 prefixlen 64 scopeid 0x1
   inet6 2001:db8::1 prefixlen 64

1. ifconfig vke0 inet6 -alias 2001:db8::1
   ifconfig: ioctl (SIOCDIFADDR): Can't assign requested address

1. ifconfig vke0 | grep inet6
   inet6 fe80::2be:dfff:fedf:804%vke0 prefixlen 64 scopeid 0x1
   inet6 2001:db8::1 prefixlen 64

The attached patch fixes the bug.

Regards,

Yann

---Files--------------------------------
ifconfig.patch (402 Bytes)

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