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How to get cached PMTU information?
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Christophe Lohr
Dec 8, 2009, 9:18:49 AM12/8/09
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Hi,
is there a way to get cached information relating to "Path MTU Discovery"?
is there a way to get cached information relating to "Path MTU Discovery"?
using the "ip" command
using a kernel module like tcp_probe
using a secret getsockopt()
or something else...
Regards,
Christophe
Pascal Hambourg
Dec 8, 2009, 12:18:42 PM12/8/09
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Hello,
Christophe Lohr a ï¿œcrit :
> is there a way to get cached information relating to "Path MTU Discovery"?
>
> using the "ip" command
Maybe "ip route show cache" and "ip route get <address>".
Christophe Lohr
Dec 9, 2009, 3:40:04 AM12/9/09
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Pascal Hambourg a ï¿œcrit :
Thank you
Are "ICMP host redirect" also there?
Pascal Hambourg
Dec 14, 2009, 10:07:22 AM12/14/09
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Christophe Lohr a ï¿œcrit :
>>
>>> is there a way to get cached information relating to "Path MTU Discovery"?
>>>
>>> using the "ip" command
>>
>> Maybe "ip route show cache" and "ip route get <address>".
>
> Thank you
>
> Are "ICMP host redirect" also there?
>>
>>> is there a way to get cached information relating to "Path MTU Discovery"?
>>>
>>> using the "ip" command
>>
>> Maybe "ip route show cache" and "ip route get <address>".
>
> Thank you
>
> Are "ICMP host redirect" also there?
Yes, routes created through an ICMP redirect are marked with the tag
<redirected>.
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