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guys pls help me out
i dunno what wrong i m doing
pls help me out
tearing my hair
Khiz
On Tue, 01 Jan 2002 khiz nms wrote :
>
> Hi all
> i m facing a problem with my TUN setup
>
> my real server is on a seperate network from the
> director and is not prone to the ARP problem coz there
> is no routing for the VIP which leads to the
> realserver's network!!
> realserver is redhat 6.2 VIP 202.120.130.102
>
> ipvsadm is correctly configured for tunnelling to the
> RIP and this i have verified by using tcpdump on the
> Realserver and i see packets CIP->RIP hitting the
> realserver
>
> tcpdump on realserver
> eth2 < 10.1.5.5.2051 > 202.120.130.102.www: S
> 421444096:42144409 6(0) win 65535 <mss 1460> (DF) (ipip)
>
>
> where 10.1.5.5 is CIP 202.120.130.102 is the VIP
>
> the director has only one NIC configured with VIP
> result of ipvsadm .. the director and the realserver
> dont have any network in common so the arp problem does
> not exist in my case
>
> IP Virtual Server version 1.0.8 (size=32768)
> Prot LocalAddress:Port Scheduler Flags
> -> RemoteAddress:Port Forward Weight ctiveConn
> InActConn
> TCP 202.120.130.102:www rr
> -> 10.1.11.225:www Tunnel 4 0 2
>
>
> However connections from the client seem to hang
>
> IP spoofing is enabled on the routers because doing
> traceroute -n -s VIP someother IP FROM the REALSERVER
>
> result in icmp port unreachable messages occuring on
> the Director which only arps for the VIP.. this impies
> that spoofing of VIP from REALSERVER is permitted
>
> i have configured VIP on tunl0 of REALSERVER
>
> telnet VIP www from realserver itself is also
> successful
>
>
> ifconfig on REALSERVER gives
> eth2 blah blah 10.1.11.225
> tunl0 Link encap:IPIP Tunnel HWaddr
> inet addr:202.140.120.102
> Mask:255.255.255.255
> UP RUNNING NOARP MTU:1480 Metric:1
>
> route -n shows on REALSERVER
> 202.120.130.102 0.0.0.0 255.255.255.255 UH 0
> 0 0 tunl0
> 10.1.11.225 0.0.0.0 255.255.255.255 UH 0
> 0 0 eth2
> 10.1.11.0 0.0.0.0 255.255.255.0 U 0
> 0 0 eth2
> 127.0.0.0 0.0.0.0 255.0.0.0 U 0
> 0 0 lo
> 0.0.0.0 10.1.11.51 0.0.0.0 UG 0
> 0 0 eth2 VIP
>
> a route to the VIP exists with dev tunl0 ( only one VIP
> in use on the realserver)
>
> ip forwarding enabled on realserver
> lsmod shows ipip ;-)
> i dunno whats wrong with the configuration
> pls help me out
> BTW realserver is 6.2 redhat 2.2.14-5.0 ipip is a
> module
>
> TIA
> Khiz
> P>S the only commands i used on the director
> ipvsadm -A -t 202.120.130.102:80 -s wlc
> ipvsadm -a -t 202.120.130.102:80 -r 10.1.11.225 -i
>
> i did not use any configure script .. this seems fine
> coz the director is actaully passing tunnelled packets
> to the Realserver..hope i m right
>
>
>
>
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