I forgot to send the ifconfig for the load balancer as well.
$ ifconfig -a
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet x.y.187.253 netmask 0xffffff00 broadcast x.y.187.255
inet6 fe80::240:d9ff:fe02:48fe%fxp0 prefixlen 64 scopeid 0x1
inet x.y.187.8 netmask 0xffffffff broadcast x.y.187.255
inet x.y.187.10 netmask 0xffffffff broadcast x.y.187.255
ether 00:40:d9:02:48:fe
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
fxp1: flags=c843<UP,BROADCAST,RUNNING,SIMPLEX,LINK2,MULTICAST> mtu 1500
inet 192.168.254.1 netmask 0xffffff00 broadcast 192.168.254.255
inet6 fe80::240:d9ff:fe02:48ff%fxp1 prefixlen 64 scopeid 0x2
ether 00:40:d9:02:48:ff
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
faith0: flags=8002<BROADCAST,MULTICAST> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
inet 127.0.0.1 netmask 0xff000000
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
sl0: flags=c010<POINTOPOINT,LINK2,MULTICAST> mtu 552
I guess my biggest question is, why do the IPs .128, .129, .130, .131
appear in the routing tables where they're NOT defined? I don't get it?
Ok, as a Solaris (and Linux) guy, I'm thoroughly confused by some routing
issues going on in this FreeBSD-based load balancer that I'm working on.
This box has one upstream NIC (fxp0) and a 4-port (hub?) as fxp1.
Currently, it has two cables plugged into it (server1 and server2), and two
domains being load balanced:
192.168.254.128, 192.168.254.130 server1
192.168.254.129, 192.168.254.131 server2
I guess my first question is, why are these IP addresses even registered on
the load balancer? These IPs are plumbed and active on server1 and server2
respectively. I'm assuming the below is some kind of routing deal, but why
is a route defined on the routing server?
I'm trying to add another server (192.168.254.254) that can be accessed from
the load balancer, server1 and server2.
Seems simple enough:
route add -host 192.168.254.254 192.168.254.1
but that didn't work.
I guess I need to figure out how to "define" 192.168.254.254 the same as
.128, .129, .130, .131 but I just can't figure it out because FreeBSD's
netstat output is so different from Solaris (or Linux).
Can anyone else? Let me know if you need more clarification..
192.168.254.1:# netstat -nr
Destination Gateway Flags Refs Use Netif Expire
default x.y.187.1 UGSc 54607523 55161243 fxp0
x.y.187/24 link#1 UC 6 0 fxp0
x.y.187.1 00:07:b4:00:bb:01 UHLW 7 0 fxp0 918
x.y.187.2 00:11:5d:9c:d0:00 UHLW 0 0 fxp0 120
x.y.187.3 00:0f:f8:de:f4:00 UHLW 0 0 fxp0 1187
x.y.187.4 00:14:22:73:0a:20 UHLW 0 9254 fxp0 1196
x.y.187.8/32 link#1 UC 0 0 fxp0
x.y.187.10/32 link#1 UC 0 0 fxp0
x.y.187.243 link#1 UHLW 7 7 fxp0
x.y.187.246 00:17:31:ef:5f:f9 UHLW 7528 7528 fxp0 807
127.0.0.1 127.0.0.1 UH 0 8 lo0
192.168.254 link#2 UC 6 0 fxp1
192.168.254.1 00:40:d9:02:48:ff UHLW 0 7 lo0
192.168.254.128 00:14:22:72:87:67 UHLW 7 13663296 fxp1 857
192.168.254.129 00:14:22:72:91:48 UHLW 7 12663561 fxp1 1138
192.168.254.130 00:14:22:72:87:67 UHLW 7 685454 fxp1 918
192.168.254.131 00:14:22:72:91:48 UHLW 8 560930 fxp1 918
192.168.254.255 ff:ff:ff:ff:ff:ff UHLWb 0 4 fxp1
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