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Date:	Thu, 17 May 2007 18:41:42 +0200
From:	Patrick McHardy <>
To:	Janusz Krzysztofik <>
CC:	Julian Anastasov <>, Simon Horman <>,
	David Miller <>,
Subject: Re: [IPV4] LVS: Allow to send ICMP unreachable responses when real-servers
 are removed

Janusz Krzysztofik wrote:
> Julian Anastasov wrote:
>> If icmp_send is changed to use inet_addr_type() then ICMP will leave
>> with saddr != VIP and that is not nice.
>> ...
>>> I'm not familiar with the IPVS terms, but as far as I understand,
>>> it is _not_ going to return RTN_LOCAL, so we get the desired
>>> behaviour of selecting a local address as source.
>>     But what is preferred is to use VIP in ICMP.
>> ip route add local VIP dev lo table user_defined
>>     returns RTCF_LOCAL but inet_addr_type() does not return RTN_LOCAL,
>> we fix one thing but break another :)
> Well, I have promissed you to give some feedback after I test the patch
> proposed by Patrick, but after Julian's post I can only confirm that it
> works exactly as Julian said, what is not what I would expect.

It will pick a local source address and use that. I don't see why
it matters whether its the VIP address or some other.
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