Symptoms

Applies to: System upgraded to DDOS versions before 8.3.1.20 or 8.1.x, for example: DDOS system upgraded from 7.13.1.40 to 8.3.1.10System upgraded to DDOS versions before 7.10.1.80 but after 7.10.1.40+. When an SNMP configuration includes a port appended to the IP address, the following symptoms appear: SNMP traps are not sent.The log messages.engineering displays "Invalid IP address" errors.The error message shows the IP and port concatenated with "!!." Example log entries in messages.engineering: #log view debug/messages.engineering 2023-10-08 09:52:43 xxxxx emsmon: ERROR: Invalid IP address: x.x.x.x!!162 2023-10-08 09:52:46 xxxxx emsmon: ERROR: Invalid IP address: x.x.x.x!!162 2023-10-08 09:53:09 xxxxx emsmon: ERROR: Invalid IP address: x.x.x.x!!162 2023-10-08 09:55:09 xxxxx emsmon: ERROR: Invalid IP address: x.x.x.x!!162

Cause

The issue originates from an issue introduced in DD OS version 7.10.1.40, 8.1, and 8.3 when a new validation check was added for the IP address configured for SNMP traps.The check expects a pure IP address, but the implementation incorrectly passes the IP and port together as a single string formatted as "IP!!Port".Because this combined string is not a valid IP address, the validation fails, preventing the trap from being sent.

Resolution

Fix: Upgrade DDOS to version 7.10.1.80+ (if appropriate). Upgrade DDOS to version 8.3.1.20 (LTS) or 8.4.x, where the issue is corrected. Download the appropriate package from the Dell Support portal.Install the package following the standard upgrade procedure as described in the DDOS Administration Guide for the given release. Workaround: (If unable to upgrade the DD OS version at this time) Check if the SNMP trap port has been specified. [If a port other than 162 is in use, then the only options are to upgrade the DD OS or to change the environment to use the default port 162 until the DD OS version can be upgraded.] If the port has been specified, it shows as a number, otherwise shows as 'Default': # snmp show trap-hosts SNMP v2c Trap Hosts: -------------------- Trap Host Port Community --------- ---- --------- x.x.x.x 162 yyyyy --------- ---- --------- Remove the trap-host entry: # snmp del trap-host x.x.x.x:162 Add it without specifying a port: (Default port of 162 is used automatically) # snmp add trap-host x.x.x.x version v2c community yyyyy The same can be achieved in the DDOS graphical interface by removing the port number from the trap-host configuration found in Administration > Settings > SNMP

Support Cases