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Does the ASA 5510 support /31 mask?

Hi,

I've got an ASA 5510 8.2(1) and have to move to a /31 Internet address.  Is the ASA capable of it?

Thanks.

2 REPLIES
Silver

Does the ASA 5510 support /31 mask?

I don't believe it is supported:

https://supportforums.cisco.com/thread/2243858

Daniel Dib
CCIE #37149

Daniel Dib CCIE #37149 Please rate helpful posts.

Re: Does the ASA 5510 support /31 mask?

Hi,

/31 masks are generally supported only on Point-to-Point (non-multiaccess) WAN-Interfaces:

Using IP addresses with 31-Bit Prefixes on Point-to-Point WAN Interfaces to Limit Number of IP Addresses Required

HTH

Rolf

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