Port Address Translation (PAT) (also called Network Address Translation (NAT), Network Address Port Translation (NAPT) or IP masquerading) overloading allows many inside local addresses to be mapped to a single inside global address at the same time. This method is useful when few valid IP addresses are available. However, there are many hosts on the inside network that need to communicate with the outside network.
When PAT is configured, the router uses the same inside global address to translate multiple inside local addresses, and it makes use of the source port numbers to distinguish the sessions from different hosts. PAT creates an extended translation entry in the NAT table by including the protocol, as well as the port information. Since the source port number used for maintaining the uniqueness of a session can have a value from 0 to 65535, there can be a theoretical maximum of 65536 PAT entries at a time for each inside global address. Since each NAT entry requires about 160 bytes of memory, the number of translations possible is limited by the amount of memory available on the router.
Working on a stack of new Catalyst 9200L-24P-4G switches. This is the first time with this model and am beyond frustrated at this point as none of the documentation seems to work. Currently, all 4: Switch Ports Model SW Version ...
Hi, I can't find SNMP OID for cisco 3850 stack status. To be honest I can't find any IOD's. Because SNMP WALK gives me range .1.0.8802.1.1.2.....But snmp navigator does not know this OID's. How can I determine what each oid means?
Dear , I am facing an issue with connectivity for ipsec vpn with fortigatesee below sh run crypto isakmp policy 10hash md5authentication pre-sharegroup 2crypto isakmp key xxxx address xxxxx!!crypto ipsec transform-set MYSET esp-des esp-md5-hmacm...
Hello CISCO Community. I have an idea but I am not sure if I am just limited in the IOS to make this work or if there are any other technologies / configurations to make it happen. Basically, I am connecting two switches together with 2 links a...