I have a 1721 router with a DSL WIC for a location for their internet access and with a VPN tunnel to HQ. The problem is that SPI lets MOST traffic in and out, but it is blocking some sites... microsoft.com and southwest.com to name a few. This is my config for ip inspect now. Am I missing something?
ip inspect name FIREWALL udp
ip inspect name FIREWALL tcp
ip address *.*.*.* 255.255.255.248
ip access-group 102 in
ip mtu 1492
ip inspect FIREWALL out
ip nat outside
ip virtual-reassembly max-reassemblies 32
no ip route-cache cef
no ip route-cache
no ip mroute-cache
dialer pool 1
no cdp enable
I have ran debug and it is not telling me anything.
I am wondering if that version of IOS has a bug? It is c1700-advsecurityk9-mz.124-17.bin.
Also, is there a version of IOS I can use that does not have SPI?
I doubt ip inspect (CBAC) is causing the problem you are having as it's setup to inspect all TCP and UDP packets flowing through the interface. You might have a problem with MTU as you are connecting through DSL. Can you configure the command 'ip tcp adjust-mss 1440' under the LAN interface and test access to the sites you were having problem before.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.