PIX 506 - Limited Throughput ?

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Mar 20th, 2007
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I recently found a use for an old PIX 506 that I found in our store cupboard.

After doing a 'show ver' I noticed that although the number of internal hosts was unrestricted, the throughout is 'limited'. The outside ethernet is registering as 10/half.

Can anyone please tell me what the limitation is ? Is it just the difference between 10 and 100 Mbps ?


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vitripat Tue, 03/20/2007 - 13:48
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You are right. PIX-506 will always be at limited throughput as it does not have a Fast ethernet interface. If you use a PIX-506E which comes with fastethernet interfaces, you'll get unlimited throughput.

Hope that answers your concern.



dylan.webb Tue, 10/23/2012 - 16:59
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Concerning the last post by Vibhor which appears to be incorrect as I have a PIX 506e here which is limited to 10Mb Full

as the below show ver indicates.


Hardware:   PIX-506E, 32 MB RAM, CPU Pentium II 300 MHz

Flash E28F640J3 @ 0x300, 8MB

BIOS Flash AM29F400B @ 0xfffd8000, 32KB

0: ethernet0: address is 0009.7c48.c0db, irq 10

1: ethernet1: address is 0009.7c48.c0dc, irq 11

Licensed Features:

Failover:           Disabled

VPN-DES:            Enabled

VPN-3DES:           Enabled

Maximum Interfaces: 2

Cut-through Proxy:  Enabled

Guards:             Enabled

URL-filtering:      Enabled

Inside Hosts:       Unlimited

Throughput:         Limited

IKE peers:          Unlimited


Is this a licensing limitation?




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