Eu tenho um roteador sem fio recentemente adquirido cisco rv220w. Minha configuração é a seguinte:
Internet -> asa 5505 -> 10.0.1.0 subnet -> wireless router
(sub-rede 10.0.3.0, ip voltado para o público é 10.0.1.140).
Eu posso pingar entre as duas sub-redes bem, mas não muito mais. Eu fiz uma captura de pacotes com wireshark e notei algo realmente interessante. Se eu tentar conectar-me de uma máquina da sub-rede 10.0.1.0 à sub-rede 10.0.3.0, digamos área de trabalho remota para este exemplo, recebo um SYN, depois um SYN_ACK e, em seguida, não ACK de volta. Somente um reset (RST) é enviado da máquina que está iniciando a conexão.
Isso é super estranho. Qualquer ajuda seria, por favor, apreciada. Eu tenho as capturas detalhadas, se necessário. Além disso, aqui está o resultado do rastreamento de pacotes de, digamos, um computador na sub-rede 10.0.1.0 tentando se tornar remoto em um computador na sub-rede 10.0.3.0:
packet-tracer input inside tcp 10.0.1.46 33000 10.0.3.151 3389
Phase: 1
Type: FLOW-LOOKUP'
Subtype:
Result: ALLOW
Config:
Additional Information:
Found no matching flow, creating a new flow
Phase: 2
Type: ROUTE-LOOKUP
Subtype: input
Result: ALLOW
Config:
Additional Information:
in 10.0.3.0 255.255.255.0 inside
Phase: 3
Type: ACCESS-LIST
Subtype: log
Result: ALLOW
Config:
access-group inside_access_in in interface inside
access-list inside_access_in extended permit tcp any any object-group DM_INLINE_TCP_1
object-group service DM_INLINE_TCP_1 tcp
group-object ftpdatatls
group-object ftptls
group-object gtalk
group-object imapssl
group-object smtp2
group-object smtpssl
group-object sqlserver
port-object eq ftp
port-object eq ftp-data
port-object eq www
port-object eq https
port-object eq imap4
port-object eq pop3
port-object eq smtp
port-object eq ssh
port-object eq telnet
group-object internetradio
port-object eq whois
group-object webmail
group-object rdp
group-object mtbogcweb
group-object git
group-object iCloudSMTP
group-object whm
group-object utahsde
port-object eq 1401
port-object eq 5442
Additional Information:
Phase: 4
Type: IP-OPTIONS
Subtype:
Result: ALLOW
Config:
Additional Information:
Phase: 5
Type:
Subtype:
Result: ALLOW
Config:
Additional Information:
Phase: 6
Type: NAT-EXEMPT
Subtype:
Result: ALLOW
Config:
match ip inside 10.0.1.0 255.255.255.0 inside 10.0.3.0 255.255.255.0
NAT exempt
translate_hits = 23, untranslate_hits = 0
Additional Information:
Phase: 7
Type: NAT-EXEMPT
Subtype: rpf-check
Result: ALLOW
Config:
match ip inside 10.0.3.0 255.255.255.0 inside 10.0.1.0 255.255.255.0
NAT exempt
translate_hits = 0, untranslate_hits = 23
Additional Information:
Phase: 8
Type: NAT
Subtype:
Result: ALLOW
Config:
nat (inside) 1 0.0.0.0 0.0.0.0
match ip inside any inside any
dynamic translation to pool 1 (No matching global)
translate_hits = 1, untranslate_hits = 0
Additional Information:
Phase: 9
Type: NAT
Subtype: host-limits
Result: ALLOW
Config:
nat (inside) 1 0.0.0.0 0.0.0.0
match ip inside any inside any
dynamic translation to pool 1 (No matching global)
translate_hits = 1, untranslate_hits = 0
Additional Information:
Phase: 10
Type: NAT
Subtype: rpf-check
Result: ALLOW
Config:
nat (inside) 1 0.0.0.0 0.0.0.0
match ip inside any inside any
dynamic translation to pool 1 (No matching global)
translate_hits = 1, untranslate_hits = 0
Additional Information:
Phase: 11
Type: NAT
Subtype: host-limits
Result: ALLOW
Config:
nat (inside) 1 0.0.0.0 0.0.0.0
match ip inside any inside any
dynamic translation to pool 1 (No matching global)
translate_hits = 1, untranslate_hits = 0
Additional Information:
Phase: 12
Type: IP-OPTIONS
Subtype:
Result: ALLOW
Config:
Additional Information:
Phase: 13
Type: FLOW-CREATION
Subtype:
Result: ALLOW
Config:
Additional Information:
New flow created with id 77684, packet dispatched to next module
Result:
input-interface: inside
input-status: up
input-line-status: up
output-interface: inside
output-status: up
output-line-status: up
Action: allow