Does anyone who uses NAT/PAT (nat overload) limit the max number of NAT translations that any one internal IP address can have? We have had issues where people do port scans and utilise a large majority of our NAT pool. We are doing NAT on a ASR 1002 with an ESP5. It can do up to 250,000 NAT translations total and 50,000 new a second.
Now I found out that the ASR in a pool will only use the last available IP to do PAT.. The rest of the IP addresses are used for 1-1 NAT.
Here is our NAT config
> ip nat translation tcp-timeout 1800 > ip nat translation udp-timeout 1800 > ip nat translation max-entries 250000 > ip nat pool Level3Pool some-ip-address some-ip-address netmask 255.255.255.248 > ip nat inside source list NAT pool Level3Pool overload
Any idea about: ip nat settings mode cgn ip nat settings mode cgn
We are pleased to announce availability of Beta software for 16.6.3.
16.6.3 will be the second rebuild on the 16.6 release train targeted
towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are
looking for early feedback from customers befor...
Introduction Featured Speakers Luis Espejel is the Telecommunications
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In this session you can learn more about Layer 3 multicast and the best
practices to identify possible threats and take security measures. It
provides an overview of basic multicast, the best security practices for
use of this technology, and recommendati...