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Re: tunneling problem.

To: Shlomo Matichin <shlomom@xxxxxxxxxxxxx>
Subject: Re: tunneling problem.
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Julian Anastasov <ja@xxxxxx>
Date: Mon, 6 Aug 2001 11:31:08 +0300 (EEST)
        Hello,

On Sun, 5 Aug 2001, Shlomo Matichin wrote:

> hi,
>
> first of all, i want to remark that i find the LVS documentation very
> dissappoiting. why is there no word about the new 2.4 kernels? for

        Hm, yes, we have to update the pages. You search for solutions to
the ARP problem:

http://www.linuxvirtualserver.org/~julian/

> example, the "hidden" options replaced by "arpfilter"?

        Who talks about such replacement? See, the both exist in 2.2!

> as for my problem: i setup the real server (using the commands below), and
> the director machine cannot ping it. it seems arp replays do not arrive.

        This is bad. It seems you are looking into some tcpdump
output. Can you show it.

> my guess is that the real server sends the arp replay localy, since it has
> a device with the source ip address of the arp request.
>
> this happens with linux-2.4.7, commands used to setup tunneling:
>
> ifconfig tunl0 196.168.0.1 netmask 255.255.255.255 broadcast 196.168.0.1
> up
>
> route add 196.168.0.1 dev eth0

        I hope you'll not find the following doc disappointing:

http://www.ds9a.nl/2.4Routing/HOWTO//cvs/2.4routing/output/2.4routing.html

        There are sections for routing and tunneling.

        One note: there is no big changes in the routing code between
Linux 2.2 and 2.4. You just need to solve the ARP problem in 2.4

> on the director i then do ping 196.168.0.2 and get "destanation
> unreachable" after the usual arp timeout.
>
> what do you guys think?

        Your routes are wrong. Check again your settings. The ping is the
first thing that should work.

> Shlomo.
>
> --
> -------------------------------------------
> Shlomo Matichin       shlomom@xxxxxxxxxxxxx


Regards

--
Julian Anastasov <ja@xxxxxx>



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