LocalDirector problem

From: Brian (signal@xxxxxxxxxx)
Date: Wed Dec 05 2001 - 20:32:04 GMT-3


   
I am racking my head over a problem I am having with a basic localdirector
setup. I admit I don't have much experience with the LocalDirector,
although it looks pretty simple to setup for basical load balancing.

Below is a diagram, some show command output and a config. If anyone has
some experience in these boxes and can just glance it and see if I am
doing something wrong, I would appreciate it.

                        Internet
                           |
                           |
                           |
                           | s0/0
                  Border Router (3640)
                           | e0/0 12.45.140.1/27
                           | 10.0.1.1/24 (secondary)
                           |
                           |
                           | ethernet 0
                   LocalDirector 416 (12.45.140.21)
                           | ethernet 2
                           |
                           |
                          Hub
                           |
                           |
                -------------------------
                | | |
                | | |
           realserver1 realserver2 realserver3
           10.0.1.241 10.0.1.242 10.0.1.243

Notes:
1. The real servers default route to 10.1.1.1
2. I have verified a webserver is responding on port 80 of each realserver. It
is reachable using the realserver ip address from the side of the hub the reals
ervers
are on.
3. The LDIR 416 cannot ping any real servers. The real servers can ping each o
ther.
The LDIR can ping the 3640 on either of its IP addresses.
4. The LDIR 416 is addressed on both the 12.45.140.0/27 networks and the 10.0.1
.0/24
networks. Its primary IP address is 12.45.140.21/24 and I created an alias for
 the
10.0.1.250 address it has. This way I can reach it from the Internet. If I fl
ip flop
its real ip and alias, I cannot reach it.
5. The virtual server is not pingable from the Internet or realserver side of t
he hub.

ldAlpha# show real
Real Machines:

                                                   No Answer TCP Reset DataIn
                  Machine Connect State Thresh Reassigns Reassigns Conns
          server3:0:0:tcp 0 IS 8 0 0 0
          server2:0:0:tcp 0 IS 8 0 0 0
          server1:0:0:tcp 0 IS 8 0 0 0

ldAlpha# show virtual
Machines:

                  Machine Mode State Connect Sticky Pred
ictor Slowstart
           dsdata:0:0:tcp directed local IS 0 0 roun
drobin* none

ldAlpha# show bind
       Virtual Machine(s) Real Machines/Urls
           dsdata:0:0:tcp(IS)
                                    server3:0:0:tcp(IS)
                                    server2:0:0:tcp(IS)
                                    server1:0:0:tcp(IS)

: Saved
: LocalDirector 416 Version 4.2.3
: Uptime is 0 weeks, 2 days, 3 hours, 37 minutes, 45 seconds
no syslog output
no syslog console
enable password 000000000000000000000000000000 encrypted
hostname ldAlpha
no shutdown ethernet 0
no shutdown ethernet 1
no shutdown ethernet 2
interface ethernet 0 100basetx
interface ethernet 1 100basetx
interface ethernet 2 100basetx
mtu 0 1500
mtu 1 1500
mtu 2 1500
no multiring all
no secure 0
no secure 1
no secure 2
ping-allow 0
ping-allow 1
ping-allow 2
ip address 12.45.140.21 255.255.255.224
alias ip address 10.0.1.250 255.255.255.0
arp timeout 30
no rip passive
rip version 1
failover ip address 0.0.0.0
no failover
failover hellotime 30
password 5ebe2294ecd0e0f08eab7690d2a6ee69 encrypted
telnet 192.168.1.100 255.255.255.0
telnet 10.0.1.253 255.255.255.0
telnet 10.0.1.54 255.255.255.0
telnet 10.0.1.1 255.255.255.0
telnet 12.45.140.1 255.255.255.224
virtual 12.45.140.20:0:0:tcp is
predictor 12.45.140.20:0:0:tcp roundrobin
real 10.0.1.243:0:0:tcp is
real 10.0.1.242:0:0:tcp is
real 10.0.1.241:0:0:tcp is
replicate interface 1
name 10.0.1.241 server1
name 10.0.1.242 server2
name 10.0.1.243 server3
name 12.45.140.20 dsdata
bind 12.45.140.20:0:0:tcp 10.0.1.243:0:0:tcp
bind 12.45.140.20:0:0:tcp 10.0.1.242:0:0:tcp
bind 12.45.140.20:0:0:tcp 10.0.1.241:0:0:tcp

-----------------------------------------------
Brian Feeny, CCIE #8036 e: signal@shreve.net
Network Engineer p: 318.222.2638x109
ShreveNet Inc. f: 318.221.6612



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