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oh ! thank you for replaying !
well you must be right, altho i followed some of the examples at the site
[about the netmask and broadcast addresses].... because when i run ssh in debug
mode it finally got me an error message : no route to host !
and mozilla finally got me an connection refused ....
for hiding it i will try it tomorow [it's 00:00 here hehe !]
but even after reading the docs i thaught i wouldn have because "UP RUNNING
NOARP" in the ifconfig ...
also there is a firewall altho i double checked the trafic needed does go thru,
unless u tell me there must be a special "opening" which would be surprizing
'cause ipip should be just another packet like another .... just a little bit
longer ...
i hope you have noticed the two machines are in two different dataceters ...
also: .200 pings .146 and vice-vers-ca
.200 pings .77 internally
.146 pings .77 internally
i hope this is normal !
snap-snap
> >
> > eth0:0 Link encap:Ethernet HWaddr 00:D0:B7:00:B1:DC
> > inet addr:212.43.221.77 Bcast:212.43.221.77 Mask:255.255.255.255
> > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> > Interrupt:10
>
> Are you sure that you can talk with 221.77? I don't see valid
> network for it, it is not from the 221.146/27 network.
what do u mean ? is the Bcast/Mask wrong ?
i wish it is so i can move on !
snap-snap
>
On Thu, 11 Oct 2001 00:38:20 +0000 (GMT)
Julian Anastasov <ja@xxxxxx> wrote:
>
> Hello,
>
> On Wed, 10 Oct 2001, Djamil ESSAISSI wrote:
>
> > the realserver is 2.2.19
> > the Director is 2.4.9 ..
> >
> > the config on the realserver:
> >
> > [root@ns0 (13:46:01) linux]# ifconfig
> > eth0 Link encap:Ethernet HWaddr 00:D0:B7:11:5C:36
> > inet addr:212.73.232.200 Bcast:212.73.232.255
> > Mask:255.255.255.192
> > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> > RX packets:402808 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:407783 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:10301 txqueuelen:100
> > Interrupt:10
> >
> > lo Link encap:Local Loopback
> > inet addr:127.0.0.1 Mask:255.0.0.0
> > UP LOOPBACK RUNNING MTU:3924 Metric:1
> > RX packets:12795 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:12795 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:0
> >
> > tunl0 Link encap:IPIP Tunnel HWaddr
> > inet addr:212.43.221.77 Mask:255.255.255.255
> > UP RUNNING NOARP MTU:1480 Metric:1
> > RX packets:0 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:0
>
> I don't see any counters moving here (tunl0). OTOH, may be
> you can hide this 221.77 IP on tunl0:
>
> echo 1 > /proc/sys/net/ipv4/conf/all/hidden
> echo 1 > /proc/sys/net/ipv4/conf/tunl0/hidden
>
> By this way this VIP will not be used in the ARP probes.
>
> > [root@ns0 (13:57:27) linux]#route -n
> > Kernel IP routing table
> > Destination Gateway Genmask Flags Metric Ref Use
> > Iface
> > 212.43.221.77 * 255.255.255.255 UH 0 0 0
> > tunl0
> > 212.73.232.192 * 255.255.255.192 U 0 0 0 eth0
> > loopback * 255.0.0.0 U 0 0 0 lo
> > default 212.73.232.193 0.0.0.0 UG 1 0 0 eth0
> > [root@ns0 (13:58:48) linux]#
> >
> >
> > config on the Director
> >
> > [root@demo (13:58:15) LVS]# ifconfig
> > eth0 Link encap:Ethernet HWaddr 00:D0:B7:00:B1:DC
> > inet addr:212.43.221.146 Bcast:212.43.221.159
> > Mask:255.255.255.224
> > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
> > RX packets:21928 errors:0 dropped:0 overruns:0 frame:125
> > TX packets:4279 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:100
> > Interrupt:10
snip-snip
> > lo Link encap:Local Loopback
> > inet addr:127.0.0.1 Mask:255.0.0.0
> > UP LOOPBACK RUNNING MTU:16436 Metric:1
> > RX packets:20 errors:0 dropped:0 overruns:0 frame:0
> > TX packets:20 errors:0 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:0
> >
> > [root@demo (13:58:17) LVS]# route
> > Kernel IP routing table
> > Destination Gateway Genmask Flags Metric Ref Use
> > Iface
> > 212.43.221.77 * 255.255.255.255 UH 0 0 0 eth0
> > 212.43.221.128 * 255.255.255.224 U 0 0 0 eth0
> > loopback * 255.0.0.0 U 0 0 0 lo
> > default 212.43.221.129 0.0.0.0 UG 1 0 0 eth0
> >
> >
> > [root@demo (13:58:40) LVS]# ipvsadm
> > IP Virtual Server version 0.9.4 (size=4096)
> > Prot LocalAddress:Port Scheduler Flags
> > -> RemoteAddress:Port Forward Weight ActiveConn InActConn
> > TCP 212.43.221.77:www wlc
> > -> ns0.tgv.net:www Tunnel 1 0 0
>
> I assume ns0 is 232.200
>
> You have to check your routes and then to test with
> tcpdump at each point. The LVS-TUN traffic can be:
>
> client:
> eth: OUT CIP -> VIP
>
> director:
> eth: IN CIP -> VIP
> eth: OUT DIP -> RIP
>
> real server:
> eth: IN DIP -> RIP
> tunl0: IN CIP -> VIP
> eth: ARP probe who-has GW tell VIP <- VIP should not be
> announced if GW is not
> ready for this
> eth: OUT VIP -> CIP through GW
>
> You have to find at which step the traffic stops.
>
> Regards
>
> --
> Julian Anastasov <ja@xxxxxx>
>
>
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