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Community Member

connect PIX 501 to switch

I'm connecting the PIX 501 between my Cisco uBR900 cable modem/router and a 3Com OfficeConnect switch. This will replace a 3Com firewall. The switch is currently connected to the LAN port on the 3Com firewall. Do I simply connect the switch to any of the 4 PIX 501 ports? Does it make any difference which?

Community Member

Re: connect PIX 501 to switch


you can coonect the switch to any port; check the duplex and the speed of the interface of the 3COM switch vs the inside interface of the PIX 501

# sh ver

Cisco PIX Firewall Version 6.3(5)

Cisco PIX Device Manager Version 3.0(4)

Compiled on Thu 04-Aug-05 21:40 by morlee

Pix up 29 mins 13 secs

Hardware: PIX-501, 16 MB RAM, CPU Am5x86 133 MHz

Flash E28F640J3 @ 0x3000000, 8MB

BIOS Flash E28F640J3 @ 0xfffd8000, 128KB

0: ethernet0: address is 0016.9ddb.49a5, irq 9

1: ethernet1: address is 0016.9ddb.49a8, irq 10


interface ethernet0 auto

interface ethernet1 100full

nameif ethernet0 outside security0

nameif ethernet1 inside security100




Cisco Employee

Re: connect PIX 501 to switch

the inside interface of pix is a 4-port,you can connect the 3com switch to any of the port on pix's inside interface.

as specified above,make sure that the speed and duplex settings are same on both,the pix and connected switch.

you can check the status of interface on firewall by issuing the command " sh interface ".

the interface and line protocol should be ip.

for the normal internet access:

nat (inside) 1 0 0

global (outside) 1 interface

route outside 0 0

hope this helps!!


Cisco TAC.

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