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Re: arp problem : 172.26.20.xxx vs 192.168.1.xxx

To: "Young C. Cho" <jyc@xxxxxxxxxxxxxxx>
Subject: Re: arp problem : 172.26.20.xxx vs 192.168.1.xxx
Cc: LVS users <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>, Joseph Mack <mack.joseph@xxxxxxx>, horms@xxxxxxxxxxxx, mack@xxxxxxxxxxx
From: Julian Anastasov <ja@xxxxxx>
Date: Mon, 2 Oct 2000 22:05:16 +0000 (GMT)
        Hello,

On Mon, 2 Oct 2000, Young C. Cho wrote:

> Also, at the real server 1,  I configured
>
> echo 1 > /proc/sys/net/ipv4/ip_forward
> ifconfig lo:0 192.168.1.110  netmask 255.255.255.255 broadcast 192.168.1.110 
> up
> route add -host 192.168.1.110 dev lo:0
> echo 1 > /proc/sys/net/ipv4/conf/all/hidden
> echo 1 > /proc/sys/net/ipv4/conf/lo/hidden
>
> At this configuration, The real server 1 "does" respond
> the arp request. (arp problem is not solved by hiding VIP.)

        tcpdump -n -e
        arp -d 192.168.1.110 ; ping 192.168.1.110

> As summary, I only change the subnet from 172.26.20.xxx ---> 192.168.1.xxx.
> I doubt  there are some reason in the fact that IP of loopback device (dev = 
> lo)
> is 172.0.0.1.
>
> Don't you have any same situation?
>
> Any comment, Thanks.

        Set up the scripts with the new addresses and reboot

> Young C. Cho
>
> ----------------------------------------
> Young Cheol Cho, Ph. D.
>
> jyc@xxxxxxxxxxxxxx
> http://cisl.snu.ac.kr/~jyc
>
> Automation Systems Reseach Institute,
> Seoul National Univ.,
> Seoul, 151-742, Korea.
> Tel : +82-2-874-8256
> Fax: +82-2-974-8256
> ---------------------------------------


Regards

--
Julian Anastasov <ja@xxxxxx>



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