Individual static NAT on subnet 8, question?
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Posted by Tony on May 31, 2005, 4:00 am
Please log in for more thread options Hi Guys, I have a specific need for a network setup and would like you experts to comment on my work (Still learnig...) for a 1841 router with ADSL WIC. Requirements (Addresses are fictional): Interface 0/0 Here we need a couple of global addresses, no NAT. IP address 87.13.9.9 255.255.255.248 (/29) Interface 0/1 Here we need a couple of local addresses with NAT to 2 of the /29 addresses above. IP address 172.88.0.254 255.255.255.0 ATM interface 0/0/0 Here we have the same IP range as on Interface 0/0 The ATM is connected to ISP with a routed /29 It is expected that incomming packets to the 2 specific addresses in the /29 get translated to 2 specific addresses on interface 0/1 while the 3 remaining addresses on ATM 0/0/0 get routed directly to interface 0/0. Proposed router CFG ! interface FastEthernet0/0 ip address 87.13.9.9 255.255.255.248 duplex auto speed auto ! interface FastEthernet0/1 ip address 172.88.0.254 255.255.255.0 ip nat inside duplex auto speed auto ! interface ATM0/0/0 no ip address ... pvc .... encapsulation .... dialer pool-member 1 ! ! interface Dialer1 ip address negotiated ip nat outside encapsulation ppp dialer pool 1 ppp authentication chap callin .... ! ip classless ip route 0.0.0.0 0.0.0.0 Dialer1 ! ip nat inside source static 172.88.0.1 87.13.9.12 ip nat inside source static 172.88.0.2 87.13.9.13 Would the above configuration do what I want? Is it nescesary to do this too: ip nat outside source static 87.13.9.12 172.88.0.1 ip nat outside source static 87.13.9.13 172.88.0.2 Thanks for your reply to what is probably a beginner question in the Cisco relm of things. Tony | ||||||||||
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