I have a strange problem with cisco 1921 static NAT. Part of staticly natted hosts are able to be aceesed from WAN and other aren't. For hosts like PC's remote access works (remote desktop) but for IP cameras or PBX it doesn't. All devices are properly configured with static adresses in network 192.168.1.0 and are fully accessed from LAN. I'm changing old linksys RV 042 router for Cisco 1921. With previous router all one-to-one nat translations worked. With new 1921 I get problems. Could you help me with it? This is my config:
Current configuration : 4528 bytes
! Last configuration change at 11:06:59 PCTime Wed Aug 22 2012
Thanks Alessio for your suggestion. I did it but without proper result. I think I found the issue. I added two lines to running config:
ip nat translation tcp-timeout 600
ip nat translation udp-timeout 600
I'm on CCNA level so I'm not able to explain why after adding these two lines to the config, static nat started to work properly for all hosts. Even if static nat is combined with overlaping subnet. Maybe in NAT translations table I had old dynamic translations created before static nat configuration.
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