Question : Problem: Problems configuring a Cisco PIX 501 firewall.

Hello,
     I am running into some issues with my current network config, and getting a PIX 501 setup.  The problem that I am running into is that while Internet access is working fine, and I can access our DMZ hosts on the other side of the firewall with no issues, anytime we try to access the MySQL server on the DMZ side of the network, communications are unacceptably slow.
     Here is the current config we are working with.  T1 to Cisco 1601 (running access-lists to filter out all but accepted traffic.  http, https, MySQL, SSH, etc.), Cisco 1601 to a hub (for DMZ hosts), hub to Cisco PIX 501, PIX 501 to internal hub (and out to office PC's and fileserver).
     The Cisco router portion of this is working fine.  We recently added the PIX 501 to better secure the internal network.
     Here is the current PIX configuration:

: Saved
: Written by enable_15 at 10:10:46.960 UTC Thu Dec 15 2005
PIX Version 6.2(2)
nameif ethernet0 outside security0
nameif ethernet1 inside security100
enable password xxxxxxxxxxxxxx encrypted
passwd xxxxxxxxxxxxxxx encrypted
hostname fw0
domain-name hlsm.com
fixup protocol ftp 21
fixup protocol http 80
fixup protocol h323 h225 1720
fixup protocol h323 ras 1718-1719
fixup protocol ils 389
fixup protocol rsh 514
fixup protocol rtsp 554
fixup protocol smtp 25
fixup protocol sqlnet 1521
fixup protocol sip 5060
fixup protocol skinny 2000
names
pager lines 24
interface ethernet0 10baset
interface ethernet1 10full
mtu outside 1500
mtu inside 1500
ip address outside xxx.xxx.204.30 255.255.255.0
ip address inside 192.168.1.1 255.255.255.0
ip audit info action alarm
ip audit attack action alarm
pdm location 192.168.1.51 255.255.255.255 inside
pdm logging informational 100
pdm history enable
arp timeout 14400
global (outside) 1 216.37.204.31
nat (inside) 1 0.0.0.0 0.0.0.0 0 0
route outside 0.0.0.0 0.0.0.0 216.37.204.254 1
timeout xlate 0:05:00
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 rpc 0:10:00 h323 0:05:00 sip 0:30:00 sip_media 0:02:00
timeout uauth 0:05:00 absolute
aaa-server TACACS+ protocol tacacs+
aaa-server RADIUS protocol radius
aaa-server LOCAL protocol local
http server enable
http 192.168.1.0 255.255.255.0 inside
no snmp-server location
no snmp-server contact
snmp-server community public
no snmp-server enable traps
floodguard enable
no sysopt route dnat
telnet timeout 5
ssh timeout 5
dhcpd address 192.168.1.2-192.168.1.129 inside
dhcpd lease 3600
dhcpd ping_timeout 750
dhcpd auto_config outside
terminal width 80
Cryptochecksum:f854e068dc8109e7050a8e29d896023c
: end

     I am open to any suggestions on this situation.  I was thinking about having the PIX 501 directly behind the router, but we are hosting a good few websites, and I am not sure if the 501 can handle the load of all of the webservers.
     If anyone can shed some light on why only MySQL transactions are slow across the PIX, I would greatly appreciate it.

Thanks,
Mike Hilty
Lead IT Technician
HLSM Parts and Accessories
[email protected]

Answer : Problem: Problems configuring a Cisco PIX 501 firewall.

So, before adding the PIX, the MySQL was directly behind the 1601 and performance was acceptable?  Just making sure the problem is with the PIX...

If my assumption is right, try without the fixup protocol sqlnet for troubleshooting purposes.  Or, can you easily put the MySQL back onto the internal network just as a test?  Usually, MySQL is placed on the internal network anyway.  Then, if your DMZ web servers need access, you open the needed ports via static and access lists.

One more thing to look at on the PIX:

show interface e0

Make sure there are no errors.  If there are, you might have a duplex/speed mismatch.  Ensure you hardcode the interface on both ends or try to set it to auto.
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