Need Help on Configuring Virtual Server

Destination IP address is nothing but that virtual IP you use to access the application. As its Virtual Edition , if its LAB make sure you have reach ability to network segment/subnet you define for LB VIP and selfip's should have reach ability to Pool members/Nodes.

Hi Habib,

yes, this is kind of LAB setup. The IP which I've used in pool (pool member 10.0.3.84 on port 80) was accessible fine (ex: http://10.0.3.84). I got stuck up at virtual server end. I tried using the virtual server IP as 10.0.5.101 and the virtual server status shows green. But when I tried to access http://10.0.5.101 that did not work. I should get a apache web page but instead I got page not found error. What am I doing wrong?

ifconfig on F5 device;

eth0      Link encap:Ethernet  HWaddr 00:0C:29:78:7B:BF  
          inet addr:10.0.3.82  Bcast:10.0.3.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe78:7bbf/64 Scope:Link
          UP BROADCAST RUNNING ALLMULTI MULTICAST  MTU:1500  Metric:1
          RX packets:67156 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16380 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:15557179 (14.8 MiB)  TX bytes:2772795 (2.6 MiB)

eth2      Link encap:Ethernet  HWaddr 00:0C:29:78:7B:D3  
          inet6 addr: fe80::20c:29ff:fe78:7bd3/64 Scope:Link
          UP BROADCAST RUNNING PROMISC ALLMULTI MULTICAST  MTU:1500  Metric:1
          RX packets:261714 errors:0 dropped:0 overruns:0 frame:0
          TX packets:707 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:39288375 (37.4 MiB)  TX bytes:55022 (53.7 KiB)

eth3      Link encap:Ethernet  HWaddr 00:0C:29:78:7B:DD  
          inet6 addr: fe80::20c:29ff:fe78:7bdd/64 Scope:Link
          UP BROADCAST RUNNING PROMISC ALLMULTI MULTICAST  MTU:1500  Metric:1
          RX packets:262340 errors:0 dropped:0 overruns:0 frame:0
          TX packets:81 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:39342025 (37.5 MiB)  TX bytes:4950 (4.8 KiB)

external  Link encap:Ethernet  HWaddr 00:0C:29:78:7B:D3  
          inet addr:10.0.5.100  Bcast:10.0.5.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe78:7bd3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:36730 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3031044 (2.8 MiB)  TX bytes:180 (180.0 b)

internal  Link encap:Ethernet  HWaddr 00:0C:29:78:7B:DD  
          inet addr:10.0.4.100  Bcast:10.0.4.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe78:7bdd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:36723 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3030624 (2.8 MiB)  TX bytes:180 (180.0 b)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.255.255.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:72113 errors:0 dropped:0 overruns:0 frame:0
          TX packets:72113 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:14595136 (13.9 MiB)  TX bytes:14595136 (13.9 MiB)

lo:1      Link encap:Local Loopback  
          inet addr:127.2.0.2  Mask:255.255.255.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1

tmm       Link encap:Ethernet  HWaddr 00:98:76:54:32:10  
          inet addr:127.1.1.254  Bcast:127.1.1.255  Mask:255.255.255.0
          inet6 addr: fe80::298:76ff:fe54:3210/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:9282  Metric:1
          RX packets:18467 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18521 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1020329 (996.4 KiB)  TX bytes:8296771 (7.9 MiB)

tmm_bp    Link encap:Ethernet  HWaddr 02:01:23:45:00:FE  
          inet addr:127.20.0.254  Bcast:127.20.255.255  Mask:255.255.0.0
          inet6 addr: fe80::1:23ff:fe45:fe/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  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 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)


   Any ideas?
   thanks 

Hi Shankar,

1) Check if you are able to ping the VIP from where your trying to access this page.(If you are unable to ping, you need to first fix the reachability) 2) Check the status of Pool (is it green or red in status). If pool is not showing green (check the monitor you set) and also login to ltm using cli and do ping and telnet to pool member. 3) if step 1 and 2 are fine good. Then you can check in cli (tmos) show sys connection | grep 10.0.5.101. If your seeing your connection hit in connection table, for further troubleshooting run tcpdump . 4)tcpdump -vni 0.0:nnn -s 0 "( host 10.0.5.101 and 10.0.3.84 ) or ( host "ip from where your connecting" )"

You should be able to do the basic troubleshooting with above steps. Let me know if any confusion or more information needed.

Hi Habib,

I think I can't ping the VIP from my mac. I will need to work on it. Any idea on how to fix it? Should I go to network preference and add another network with IP in same range (10.0.5.150 and 255.255.255.0) and gw as 10.0.3.1 ? correct?

thanks

Hi,

When configuring "External" interface, choose IP addresses according the VMNET IP network on your Mac. it help to access VS ip address :-)

then, configure automap source address translation in the virtual server if F5 is not the Apache default gateway.

Thanks Stanislas. Will give it a try.

voila !!! That did work Stanislas. Thanks so much both of you (Habib too). Everything appears to be working correctly. You saved tons of my time.