I have a 2514 router connected to two ethernet subnets and a serial connected to a frame relay (internet). A real text book example for a small office. E0 is the internal network private addressing and E1 is the subnet with the public addresses.. NAT uses the s0 in overload for the users on E0 and there are some static NATs for outside mail and web to come into the private network. Problem is that I loose connection to the E0, can't ping it or telnet to the router from the inside network. Not sure why, seems to happen when someone does a email out (maybe) or the internal network gets busy (maybe)
Not sure if I should or should not use the extendable command with nat?
Not sure why you would lose connectivity, but here are some suggestions:
1) change your password on your telnet (vty 0 4) connection. "cisco" is WAY too obvious and besides... you've now posted it.
2) Change your access-list to:
access-list 1 deny 10.10.90.7 0.0.0.0
access-list 1 deny 10.10.90.8 0.0.0.0
access-list 1 permit 10.10.90.0 0.0.0.255
3) Console in to the router (instead of telnet) and check your CPU utilization during a failure. If you CPU stays below 50% during peak usage, consider disabling fast switching (no ip route-cache). 11.2 had problems with NAT and fast switching.
4) SHOW INT to verify that you're not dropping packets during a failure.
5) SHOW BUFFERS to verify that you're not having buffer failures.
6) Upgrade your code! (as previously suggested)
Notes: Your last two static route statements are redundant... they're not hurting you, but they're not helping either.
Your ip default-gateway statement only works when IP routing is disabled (no ip routing or rommon mode).
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.