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Using LVS on 2.2.14 in DR mode. It is working superbly!
The kernel debug log (dmesg) occasionally gets bursts of
messages of the following form on the LVS box:
IP_MASQ:reverse ICMP: failed checksum from 199.108.9.188!
IP_MASQ:reverse ICMP: failed checksum from 199.108.9.188!
IP_MASQ:reverse ICMP: failed checksum from 199.108.9.188!
IP_MASQ:reverse ICMP: failed checksum from 199.108.9.188!
IP_MASQ:reverse ICMP: failed checksum from 199.108.9.188!
What is this, is it a serious problem, and how to deal with it?
Joseph Mack wrote:
> On Sun, 16 Jan 2000, Jivko Velev wrote:
>
> > How it proccess ICMP packets directed to your VIP.
>
> from the HOWTO
>
> Summary: This problem was handled in kernel 2.2.12 and earlier by
> having the configure script turn off icmp redirects in the
> kernel (through the proc interface). For 2.2.13 the ipvs patch
> handles this. The configure script knows which kernel you are
> using on the director and does the Right Thing (TM).
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