Cisco 827 - 827 Router - EN Guide de dépannage télécharger pdf (Page 66)

interface dialer1

ip address <ip address> <subnet mask>

mtu 1492

ip nat outside

encapsulation ppp

dialer pool 1

ppp chap hostname <username>

ppp chap password <password>

ppp pap sent−username <username> password <password>

ip nat inside source list 1 interface dialer1 overload

!−−− If you have a pool (a range) of public IP addresses provided

!−−− by your ISP, you can use a NAT Pool. Replace

!−−− ip nat inside source list 1 interface dialer1 overload

!−−− with the following two configuration statements:

!−−− ip nat inside source list 1 pool <nat pool name> overload

!−−− ip nat pool <nat pool name> <first ip address> <last ip address>

!−−− netmask <subnet mask>

!−−− If Internet users require access to an internal server, you can

!−−− add the following static NAT configuration statement:

!−−− ip nat inside source static tcp <inside ip address of server> {80 or 25}

!−−− <outside well−known ip address of server> {80 or 25} extendable

!−−− Note: TCP port 80 (HTTP/web) and TCP port 25 (SMTP/mail) are used

!−−− for this example. You can open other TCP or UDP ports, if needed.

ip classless

ip route 0.0.0.0 0.0.0.0 interface dialer1

access−list 1 permit <ip network address of ethernet0> <wildcard mask>

!−−− In this configuration, access−list 1 defines a standard access list

!−−− permitting the addresses that NAT will translate. For example, if

!−−− your private IP network was 10.10.10.0, configuring

!−−− access−list 1 permit 10.10.10.0 0.0.0.255 would allow NAT to translate

!−−− packets with source addresses between 10.10.10.0 and 10.10.10.255.

end

Troubleshoot Your Configuration

If your ADSL service is not working properly, see Troubleshooting PPPoE.

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Cisco 827 - 827 Router - EN Guide de dépannage Page 66