Searching the Help
To search for information in the Help, type a word or phrase in the Search box. When you enter a group of words, OR is inferred. You can use Boolean operators to refine your search.
Results returned are case insensitive. However, results ranking takes case into account and assigns higher scores to case matches. Therefore, a search for "cats" followed by a search for "Cats" would return the same number of Help topics, but the order in which the topics are listed would be different.
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Search for | Example | Results |
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A single word | cat
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Topics that contain the word "cat". You will also find its grammatical variations, such as "cats". |
A phrase. You can specify that the search results contain a specific phrase. |
"cat food" (quotation marks) |
Topics that contain the literal phrase "cat food" and all its grammatical variations. Without the quotation marks, the query is equivalent to specifying an OR operator, which finds topics with one of the individual words instead of the phrase. |
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Search for | Operator | Example |
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Two or more words in the same topic |
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Either word in a topic |
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Topics that do not contain a specific word or phrase |
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Topics that contain one string and do not contain another | ^ (caret) |
cat ^ mouse
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A combination of search types | ( ) parentheses |
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SNMPv2c Traps
The following table shows the format of an SNMPv2c trap, with the IP header forming the top section of the table and the SNMP Trap Protocol Data Unit (PDU) forming the lower section of the table.
Version and other information |
Source Address |
Destination Address |
PDU-Type: 4 |
Request Identifier |
Error Status |
Error Index |
PDU Variable Bindings |
SNMPv2c traps do not have an Agent Address field in the PDU; therefore, the only source field of the trap is within the IP packet header. NAT routers properly translate the source field.
On the source node, ensure that the interface associated with the private inside IP address sources all traps from devices behind the NAT router. Then, the NAT gateway can translate the trap to the correct public address.
The following diagram shows an example of correct translation from the NAT gateway. The NAT gateway properly translates a trap that begins with the source address of 192.168.1.2 to address 15.2.13.2. Then the NNMi management server correctly resolves this address.
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