Problemas no DHCP

[rafasysop]

Boa Tarde pessoal do Under, Há 3 dias eu estou tendo problemas com DHCP.
Já Atualizei a Rb que é uma 450g de 6.0 para 6.1.
Alguns clientes conseguem se conectar e outros não. Utilizo somente Airgrid M5 como Station e Rocket M5 para Emitir o sinal.

Já reiniciei todos equipamentos, já voltei um Bkp da RB que antes não tinha problema algum.

Só me resta trocar as fontes e swith.

Configuração do Dhcp:

/ip dhcp-server
add address-pool=hs-pool-5 disabled=no interface=ether5 lease-time=1h name=dhcp1
/ip dhcp-server network
add address=50.6.0.0/16 comment="hotspot network" gateway=50.6.0.1
/ip pool
add name=hs-pool-5 ranges=50.6.0.2-50.6.255.254
 
 
 
/ip hotspot profile
add hotspot-address=50.6.0.1 login-by=http-chap name=hsprof1 nas-port-type=ethernet radius-interim-update=2m use-radius=yes
/ip hotspot
add address-pool=hs-pool-5 addresses-per-mac=3 interface=ether5 name=hotspot1 profile=hsprof1

Erros nos Logs:

15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:06 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:08 dhcp,warning dhcp1 offering lease 50.6.130.46 for 00:27:22:B6:04:BE without success 
15:09:10 dhcp,warning dhcp1 offering lease 50.6.255.172 for 00:27:22:6E:80:28 without success 
15:09:12 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:12 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:12 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:12 dhcp,warning dhcp1 offering lease 50.6.255.184 for DC:9F:DB:22:19:88 without success 
15:09:16 dhcp,warning dhcp1 offering lease 50.6.0.54 for 00:27:22:AA:BE:D4 without success 
15:09:17 dhcp,warning dhcp1 offering lease 50.6.255.119 for 00:27:22:BE:A7:64 without success 
15:09:22 dhcp,warning dhcp1 offering lease 50.6.255.167 for DC:9F:DB:3C:7A:4A without success 
15:09:23 dhcp,warning dhcp1 offering lease 50.6.255.173 for 00:27:22:1C:F9:9D without success 
15:09:23 dhcp,warning dhcp1 offering lease 50.6.255.112 for DC:9F:DB:22:6A:2A without success 
15:09:23 dhcp,warning dhcp1 offering lease 50.6.0.92 for 00:27:22:00:ED:72 without success 
15:09:24 dhcp,warning dhcp1 offering lease 50.6.0.238 for 00:27:22:1E:E0:01 without success 
15:09:29 dhcp,warning dhcp1 offering lease 50.6.255.238 for DC:9F:DB:22:6C:81 without success 
15:09:29 dhcp,warning dhcp1 offering lease 50.6.255.97 for DC:9F:DB:22:6C:88 without success 
15:09:35 system,info,account user conectax logged out from 50.6.0.50 via telnet 
15:09:40 dhcp,warning dhcp1 offering lease 50.6.130.46 for 00:27:22:B6:04:BE without success 
15:09:43 dhcp,warning dhcp1 offering lease 50.6.255.172 for 00:27:22:6E:80:28 without success 
15:09:46 system,info,account user conectax logged in from 50.6.0.50 via telnet 
15:09:49 dhcp,warning dhcp1 offering lease 50.6.0.54 for 00:27:22:AA:BE:D4 without success 
15:09:50 dhcp,warning dhcp1 offering lease 50.6.255.184 for DC:9F:DB:22:19:88 without success 
15:09:50 dhcp,warning dhcp1 offering lease 50.6.0.54 for 00:27:22:AA:BE:D4 without success

Sem Mais, qualquer ajuda será analizada e bem vinda, Obrigado.

[rafasysop]

Depois de 3 dias pesquisando, reconfigurando mikrotik, trocando equipamentos, Achei o problema e a solução!


Tinha um Rocket M5 que estava travado, identifiquei isso tentando acessar o mesmo, Não tendo resultado fui até a torre reiniciar ele, resolvendo o problema do Dhcp.

[gamineiro]

Boa noite amigo.

Desculpe ter chegado tarde e não ter tentado te ajudar. Mesmo assim, aproveito seu tópico para fazer uma observação quanto a sua rede interna.

Sugiro que leia a RFC[1] que fala sobre a política de endereçamento privado.

A rede que você usa atualmente é uma rede pública, que pertence a empresa Ecommerce Corporation[2].

[1] http://tools.ietf.org/html/rfc1918
[2] http://bgp.he.net/net/50.6.0.0/16

Um Abraço

[rafasysop]

Ah sim, Muito obrigado gamineiro.

Eu havia trocado esta rede já na tentativa de resolver o problema.
Ontem depois do reset do rocket funcionou normalmente por umas 3h
Depois disso comessaram novamente os logs de erro do DHCP.

e o equipamento que antes estava com problemas, não está mais.
Já reiniciei o mesmo para testes.

Será que seria alguem, atacando?
Bem lá vou eu mais um dia.

Bom dia A todos!

[gamineiro]

Bom dia,

Veja esse post[1] do @alexandrecorrea, talvez seja o seu problema.

[1] https://under-linux.org/showthread.p...virus+ubiquiti

Abraço

[rafasysop]

Então parceiro eu já havia realizado a regra no mikrotik, mas não há trafego nesta regra.

/ip firewall filter
add action=log chain=forward dst-address=178.216.144.75
add action=drop chain=forward dst-address=178.216.144.75

As antenas da torre estão todas atualizadas.

Agora estão aparecendo outras informações no log:

09:17:58 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:17:58 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:18:03 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:18:03 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:18:03 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:18:03 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
09:18:03 dhcp,info dhcp1 deassigned 50.6.255.115 from 00:E4:D5:B1:AE:B3 
09:18:03 dhcp,info dhcp1 assigned 50.6.255.115 to 00:E4:D5:B1:AE:B3 
...
10:16:01 dhcp,info dhcp1 deassigned 50.6.0.144 from DC:9F:DB:E8:A0:DC 
10:16:01 dhcp,info dhcp1 assigned 50.6.0.144 to DC:9F:DB:E8:A0:DC 
10:17:55 dhcp,info dhcp1 assigned 50.6.0.33 to DC:9F:DB:22:6C:99 
10:17:58 dhcp,info dhcp1 deassigned 50.6.0.33 from DC:9F:DB:22:6C:99 
10:17:58 dhcp,info dhcp1 assigned 50.6.0.33 to DC:9F:DB:22:6C:99 
10:18:03 dhcp,info dhcp1 deassigned 50.6.0.33 from DC:9F:DB:22:6C:99 
10:18:03 dhcp,info dhcp1 assigned 50.6.0.33 to DC:9F:DB:22:6C:99

[gamineiro]

Perfeito! Do vírus você está livre então.

Sugiro que você habilite o log remoto, assim poderá ficar recebendo o log e quando o equipamento travar, analisar o que aconteceu anteriormente.

Vai precisar de um servidor de log para receber os dados.

Abraço