Cisco Cisco Packet Data Gateway (PDG) Documentation Roadmaps
Network Address Translation Overview
▀ NAT Feature Overview
▄ Cisco ASR 5000 Series Product Overview
OL-22937-01
EDRs
The following NAT-specific attributes are supported in regular EDRs:
sn-nat-subscribers-per-ip-address: Subscriber(s) per NAT IP address
sn-subscriber-nat-flow-ip: NAT IP address of NAT-enabled subscribers
sn-subscriber-nat-flow-port: NAT port number of NAT-enabled subscribers
UDRs
The following NAT-specific attribute is supported in regular UDRs:
sn-subscriber-nat-flow-ip: NAT IP addresses that are being used by NAT-enabled subscribers. The NAT IP addresses
assigned from each of the associated pool for the call are logged. A space is used as a separator between individual IP
addresses.
assigned from each of the associated pool for the call are logged. A space is used as a separator between individual IP
addresses.
Bulk Statistics
NAT bulkstats are per context and per NAT realm. The NAT realms are configured in a context and statistics are stored
per context per realm. These statistic variables, both cumulative and snapshot, are available in the nat-realm schema.
per context per realm. These statistic variables, both cumulative and snapshot, are available in the nat-realm schema.
Bulkstats are only generated for the first 100 NAT IP pools from an alphabetical list of all NAT IP pools, which is based
on the context name and pool name. Therefore, to generate bulkstats for a specific NAT IP pool it must be named such
that it gets selected in the first 100 bulkstats.
on the context name and pool name. Therefore, to generate bulkstats for a specific NAT IP pool it must be named such
that it gets selected in the first 100 bulkstats.
The following are cumulative statistics that can be part of NAT bulkstats:
vpnname: Context name
realmname: Realm name
nat-bind-updates: Total interim AAA NBU sent
nat-rlm-bytes-tx: Total number of bytes transferred by realm (uplink + downlink)
nat-rlm-flows: Total number of flows used by the realm
nat-rlm-ip-denied: Total number of flows denied NAT IP address
nat-rlm-port-denied: Total number of flows denied NAT ports
The following are snapshot statistics that can be part of NAT bulkstats:
vpnname: Context name
realmname: Realm name
nat-rlm-ttl-ips: Total number of NAT public IP addresses, per context per NAT realm. Is a static value.
nat-rlm-ips-in-use: Total number of NAT IP addresses currently in use, per context per NAT realm.