For anyone following this for their own purposes, the ifstated
solution does not work. I was able to get it to log a few times in a
VM environment, but on a live system neither manually bringing an
interface up/down nor plugging/unplugging the ethernet cable is even
noticed by ifstated (running -dvv). If I'm doing something wrong,
please point it out to me.
Next, I'll be toying with Stuart's suggestion of using ospfd with all
interfaces set to passive.
-HKS
On Fri, Nov 21, 2008 at 5:26 PM, (private) HKS <[EMAIL PROTECTED]> wrote:
> On Fri, Nov 21, 2008 at 5:18 PM, (private) HKS <[EMAIL PROTECTED]> wrote:
>>> "route monitor" ?
>>>
>>> --
>>> WBR,
>>> Pereresus ne Vlezaet Buggy
>>
>> That's an interesting tool, but it's not what I'm looking for.
>>
>> My current solution is an incredibly awkward ifstated.conf (pasted below).
>>
>> Is this really the best way to do it? I have no idea what's involved
>> with logging interface state changes, but it's something that any
>> router, firewall, or server needs. PCs are debatable, but I prefer
>> that mine log it. I'd like to file a feature request but before I do,
>> is there something I'm missing here? Is there a specific reason it was
>> decided to keep this functionality out of the OS?
>>
>> -HKS
>>
>> -------------------------------------
>> ifstated.conf:
>> -------------------------------------
>>
>> # global config
>> init-state main
>> vr0_up = "vr0.link.up"
>>
>> state main {
>> init {
>> run ""
>> }
>>
>> if $vr0_up || ! $vr0_up {
>> logger "ifstatus change. vr0 `ifconfig vr0 | grep status: | sed
>> 's/^[[:space:]]//'`, vr1 `ifconfig vr1 | grep status: | sed
>> 's/^[[:space:]]//'`, vr2 `ifconfig vr2 | grep status: | sed
>> 's/^[[:space:]]//'`, vr1 `ifconfig vr3 | grep status: | sed
>> 's/^[[:space:]]//'`"
>> }
>> }
>>
>
> Whoops, posted an ifstated.conf writeup that had incorrect syntax.
> Here's the correct version:
>
> init-state main
> vr0_up = "vr0.link.up"
>
> state main {
> init {
> run ""
> }
> if $vr0_up || ! $vr0_up {
> run "logger \"ifstatus change. vr0 `ifconfig vr0 |
> grep status: | sed 's/^[[:space:]]//'`, vr1 `ifconfig vr1 | grep
> status: | sed 's/^[[:space:]]//'`, vr2 `ifconfig vr2 | grep status: |
> sed 's/^[[:space:]]//'`, vr3 `ifconfig vr3 | grep status: | sed
> 's/^[[:space:]]//'`\""
> }
> }
