error: "Invalid argument" setting key "net.ipv4.ip_local_reserved_ports"

Solution Unverified - Updated -

Issue

  • error: "Invalid argument" setting key "net.ipv4.ip_local_reserved_ports"
  • Writing a large local port range results in EINVAL error
sysctl -w net.ipv4.ip_local_reserved_ports="15100-15199,15300-15399,15500-15599,15700-15799,15900-15999,16100-16199,16300-16399,16500-16599,16700-16799,16900-16999,17100-17199,17300-17399,17500-17599,17700-17799,17900-17999,18100-18199,18300-18399,18500-18599,18700-18799,18900-18999,19100-19199,19300-19399,19500-19599,19700-19799,19900-19999,20100-20199,20300-20399,20500-20599,20700-20799,20900-20999,21100-21199,21300-21399,21500-21599,21700-21799,21900-21999,22100-22199,22300-22399,22500-22599,22700-22799,22900-22999,23100-23199,23300-23399,23500-23599,23700-23799,23900-23999,24100-24199,24300-24399,24500-24599,24700-24799,24900-24999,25100-25199,25300-25399,25500-25599,25700-25799,25900-25999,26100-26199,26300-26399,26500-26599,26700-26799,26900-26999,27100-27199,27300-27399,27500-27599,27700-27799,27900-27999,28100-28199,28300-28399,28500-28599,28700-28799,28900-28999,29100-29199,29300-29399,29500-29599,29700-29799,29900-29999,30100-30199,30300-30399,30500-30599,30700-30799,30900-30999,31100-31199,31300-31399,31500-31599,31700-31799,31900-31999,32100-32199,32300-32399,32500-32599,32700-32799,32900-32999,33100-33199,33300-33399,33500-33599,33700-33799,33900-33999,34100-34199,34300-34399,34500-34599,34700-34799,34900-34999,35100-35199,35300-35399,35500-35599,35700-35799,35900-35999,36100-36199,36300-36399,36500-36599,36700-36799,36900-36999,37100-37199,37300-37399,37500-37599,37700-37799,37900-37999,38100-38199,38300-38399,38500-38599,38700-38799,38900-38999,39100-39199,39300-39399,39500-39599,39700-39799,39900-39999,40100-40199,40300-40399,40500-40599,40700-40799,40900-40999,41100-41199,41300-41399,41500-41599,41700-41799,41900-41999,42100-42199,42300-42399,42500-42599,42700-42799,42900-42999,43100-43199,43300-43399,43500-43599,43700-43799,43900-43999,44100-44199,44300-44399,44500-44599,44700-44799,44900-44999,45100-45199,45300-45399,45500-45599,45700-45799,45900-45999,46100-46199,46300-46399,46500-46599,46700-46799,46900-46999,47100-47199,47300-47399,47500-47599,47700-47799,47900-47999,48100-48199,48300-48399,48500-48599,48700-48799,48900-48999,49100-49199,49300-49399,49500-49599,49700-49799,49900-49999,50100-50199,50300-50399,50500-50599,50700-50799,50900-50999,51100-51199,51300-51399,51500-51599,51700-51799,51900-51999,52100-52199,52300-52399,52500-52599,52700-52799,52900-52999,53100-53199,53300-53399,53500-53599,53700-53799,53900-53999,54100-54199,54300-54399,54500-54599,54700-54799,54900-54999,55100-55199,55300-55399,55500-55599,55700-55799,55900-55999,56100-56199,56300-56399,56500-56599,56700-56799,56900-56999,57100-57199,57300-57399,57500-57599,57700-57799,57900-57999,58100-58199,58300-58399,58500-58599,58700-58799,58900-58999,59100-59199,59300-59399,59500-59599,59700-59799,59900-59999,60100-60199,60300-60399,60500-60599,60700-60799,60900-60999,61100-61199,61300-61399,61500-61599,61700-61799,61900-61999,62100-62199,62300-62399,62500-62599,62700-62799,62900-62999,63100-63199,63300-63399,63500-63599,63700-63799,63900-63999,64100-64199,64300-64399,64500-64599,64700-64799,64900-64999,65100-65199,65300-65399"

Environment

  • Red Hat Enterprise Linux 7 and earlier
  • net.ipv4.ip_local_reserved_ports

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