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Cannot SSH to S-Series

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Information

 
TitleCannot SSH to S-Series
Symptoms
  • Switch refuses SSH connections
  • HosttDos shows portscan violations increasing


Support->show hostdos stats

HostDos is globally Enabled
---------------------------------------------------------------------
Threat Ena Violation Last Occurrence
ble Log Count Port VLAN Date and Time
---------------------------------------------------------------------
arpNd Y Y 4395 tg.13.1 140 2016-06-21 22:16:08
badSIP Y Y 0 N/A N/A N/A
fraggle Y Y 253108515 lag.0.2 140 2016-07-22 10:52:02
icmpFlood Y Y 0 N/A N/A N/A
icmpFrag Y Y 0 N/A N/A N/A
icmpSize Y Y 0 N/A N/A N/A
lanD Y Y 0 N/A N/A N/A
portScan Y Y 46499 lag.0.9 140 2016-07-22
  • disable portscan resolves
no hostdos[mitigation-type] [enable| disable]
Environment
  • S-Series
  • Firmware8.42.03.0007
    •  
Cause
HostDos disabling SSH connection due to excessive portscan from SolarWinds
Resolution
Increase the allowed rate of portscan higher than the rate being sent by SolarWinds

hostdos{mitigation-type | enable| icmp-maxlength icmp-maxlength} [rate count
[per-second| per-minute| per-hour| per-day]] [nolog]
Additional notes

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