Chapter 5: Local Management5-586H123-50 and 6H133-37 User’s Guide5.15.13 Enabling/Disabling IP FragmentationTo enable or disable IP fragmentation, proceed as follows.1. Use the arrow keys to highlight the IP Fragmentation field.2. Press the SPACE bar to choose either ENABLED or DISABLED.3. Use the arrow keys to highlight the SAVE command.4. Press ENTER. The Event Message Line at the top of the screendisplays “SAVED OK”.5.16 SNMP COMMUNITY NAMES SCREENThe SNMP Community Names screen enables the user to setLocal/Remote Management community names. Community names act aspasswords to Local/Remote Management and are agents of securityaccess to the 6H123-50 and 6H133-37. Access to the 6H123-50 and6H133-37 is controlled by enacting any of three different levels ofsecurity authorization (read-only, read-write, and super-user).!CAUTIONIf the 6H133-37 is being bridged to an FDDI ring (for example,via an HSIM-F6 installed in the 6H133-37) IP Fragmentationshould be enabled. If IP Fragmentation is disabled, all FDDIframes that exceed the maximum Ethernet frame size will bediscarded.NOTEIf the 6C105 has been assigned community names, it is notnecessary to assign community names to the individualmodules installed in the chassis unless the user wishes to limitaccess to 6C105 chassis screens by assigning differentcommunity names to the module. When this is done access islimited to the screens specific to the module to which theterminal is attached and the Local Management session beginsat the Module Menu screen. See Section 5.13.Super-User access gives the user full management privileges,allows existing passwords to be changed, and all modifiableMIB objects for the Cabletron Container MIB and InternetMIB-II to be accessed.