I'd like to create dhcp server pool on ASA 5510. I was wondering how big is the DHCP scope that Cisco ASA 5510 can support? Are there any ASA models which can support up to subnet mask \22 for DHCP scope?
I tested on my lab's Cisco ASA 5540, and it still says "DHCP pool range is limited to 256 addresses". I guess Alejandro Sanchez statement below is correct after all :-)
Meanwhile, I get lots of questions pertaining to the user licenses pertaining to Cisco ASA 5505. This model offers 3 types of User Licenses namely 10 users, 50 users and UL (unrestricted license). The meaning of user license here basically refers to concurrent source IP addresses that can communicate between Internal (inside) network and Internet (outside) interface.
Hence, for a 10 user license, only 10 concurrent internal hosts (IP addresses) can access the internet, at a given time. The same applies for 50 users (only 50 concurrent IP addresses can access the Internet). For UL license, there is no such restriction.
Part Number Part Description Pricing (Estimation ONLY)
ASA5505-SW-10 ASA 5505 10 User software license FREE
ASA5505-SW-50 ASA 5505 50 User software license USD 250
ASA5505-SW-UL ASA 5505 Unlimited User (UL) software license USD 400
Just for you information, the user licensing has also has an effect on the maximum number of IP addresses that can be assigned by the Cisco ASA FW (acting as a DHCP server to the internal hosts. For a 10-user license, the max number of DHCP clients on the internal network is 32. For 50-user license, the max number of DHCP clients is 128.
P/S: If you think this comment is helpful, please do rate it nicely :-)
Ramraj Sivagnanam Sivajanam
Technical Specialist/Service Delivery Manager – Managed Service Department
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...