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New Member

Sub Interfaces with PIX 515 and IOS 6.2(1)

I need to find out if subinterfaces are supported on the PIX firewalls. I am about to create a subinterface on my router due to non condiguous Class C IP ranges (can not do VLSM) and need to find out how the PIX will look at the different IP address block when it hits the ethernet ports on the Firewall when I try to NAT them to an inside address.

Anyone out there know the answer to this question...

Regards,

Benjamin Saenz

1 REPLY
New Member

Re: Sub Interfaces with PIX 515 and IOS 6.2(1)

As far as I know PIX does not support subinterfaces. It definately does not understand dot1q or ISL trunking.

http://www.cisco.com/warp/customer/110/pixfaq.shtml

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