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Hello,
On Sat, 20 May 2000, Jytsai wrote:
> Hello :
>
> When I have completed the configuration of IPVS/DR
> according to HOWTO, I found a problem when I attempt
> to connect to VIP from some client which in the same
> physical segment.
> That is , What is the correct MAC address should appear
> in this client's ARP cache when attempting to connect to VIP?
> (By "arp -a" to check the client's ARP cache)
>
> Is the MAC address should be the VIP's? or RIP's?
VIP's
>
> My testing result is , both of the 2 situations will happen
> exclusively and uncertainly !
How you solve the known ARP problem when using VS/DR
and VS/TUN methods?
> That means, sometimes VIP's and sometimes RIP's MAC
> address appears in client ARP cache. And, is it normally?
No, it is dangerous but works :) You serve all clients
using only one real server :(
>
> Further,no matter what MAC address appears in client's cache,
> most TCP protocols runs very well. But when testing ftp, the
> RIP's MAC address MUST be in client's ARP cache !
> Otherwise, the port-20 ftp-data mode will be failed !
No, it must work even when the clients talk to the
real server directly.
> So, it is failed to use "ls" command to see anything.
> By "netstat -n" command from real server, I found a connection
> from the VIP:20 tries to SYN-SEND to client. It seems like the
> client can not reply correct MAC address to it.
>
> May someone provide me solutions, thank you very much.
Read http://www.linuxvirtualserver.org/arp.html
Is that information enough?
Regards
--
Julian Anastasov <uli@xxxxxxxxxxxxxxxxxxxxxx>
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