Cisco Catalyst 6500 Series Configuration Note

A-8
Catalyst 6500 Series Content Switching Module Configuration Note
OL-4612-01
Appendix A Configuration Examples
Configuring Source NAT for Server-Originated Connections to the VIP
inservice
!
vserver FROM-SERVERS
virtual 10.20.221.100 tcp telnet
vlan 220
serverfarm FARM2
persistent rebalance
inservice
Output of show commands:
Cat6k-2# sh mod csm 5 vser
vserver type prot virtual vlan state conns
---------------------------------------------------------------------------
FROM-CLIENTS SLB TCP 10.20.221.100/32:23 221 OPERATIONAL 1
FROM-SERVERS SLB TCP 10.20.221.100/32:23 220 OPERATIONAL 1
Cat6k-2# show mod csm 5 conn detail
prot vlan source destination state
----------------------------------------------------------------------
In TCP 220 10.20.220.10:32858 10.20.221.100:23 ESTAB
Out TCP 220 10.20.220.20:23 10.20.220.99:8193 ESTAB
vs = FROM-SERVERS, ftp = No, csrp = False
In TCP 221 10.20.1.100:42443 10.20.221.100:23 ESTAB
Out TCP 220 10.20.220.10:23 10.20.1.100:42443 ESTAB
vs = FROM-CLIENTS, ftp = No, csrp = False
# The command shows the open connections and how they are translated.
#
# For each connection, both halves of the connection are shown.
# The output for the second half of each connection
# swaps the source and destination IP:port.
#
# The connection originated by server 10.20.220.10 is source-NAT'ed
# and source-PAT'ed (also its L4 source port needs to be translated)
# Its source IP changes from 10.20.220.10 to 10.20.220.99
# Its source L4 port changes from 32858 to 8193
Cat6k-2# show mod csm 5 real
real server farm weight state conns/hits
-------------------------------------------------------------------------
10.20.220.10 FARM 8 OPERATIONAL 1
10.20.220.20 FARM 8 OPERATIONAL 0
10.20.220.30 FARM 8 OPERATIONAL 0
10.20.220.10 FARM2 8 OPERATIONAL 0
10.20.220.20 FARM2 8 OPERATIONAL 1
10.20.220.30 FARM2 8 OPERATIONAL 0
Cat6k-2# sh mod csm 5 natpool
nat client POOL-1 10.20.220.99 10.20.220.99 netmask 255.255.255.0
Cat6k-2# sh mod csm 5 serverfarm
server farm type predictor nat reals redirect bind id
----------------------------------------------------------------------
FARM SLB RoundRobin S 3 0 0
FARM2 SLB RoundRobin S,C 3 0 0

Cisco Catalyst 6500 Series Specifications

General

Brand	Cisco
Model	Catalyst 6500 Series
Category	Switch
Language	English