Cisco Router 800 Series Software Configuration Guide
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2-13 Cisco 800 Series Software Configuratio Guide 78-5372-06 Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet Figure 2-2 Connecting a Public IP Network to the Internet Callout Number Description 1DHCP server at Site 1 2National ISDN-1 switch type, with B1 SPID 40855511110101 and B2 SPID 40855522220101 3Private IP network 4DHCP client 5PPP link 6ISDN phone number, 4085551111 7Internet service provider 8CHAP or PAP 9Domain Name System (DNS) server 10.0.0.0...
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Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet 2-14 Cisco 800 Series Software Configuratio Guide 78-5372-06 Features Used This network uses the following features on the LAN: IP routing DHCP server (optional) When your router is acting as a DHCP server, workstations configured as DHCP clients are automatically assigned IP addresses and subnet masks. This network uses the following features on the WAN: IP routing PPP IPCP (optional) CHAP or PAP over PPP...
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2-15 Cisco 800 Series Software Configuratio Guide 78-5372-06 Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet Step 2Specify an encrypted password containing from 1 to 25 uppercase or lowercase alphanumeric characters. Spaces are valid password characters. Leading spaces are ignored but trailing spaces are recognized. For example: SanJose(config)# enable secret abra cadabra Step 3Configure the router to recognize the zero subnet range as a valid range of...
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Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet 2-16 Cisco 800 Series Software Configuratio Guide 78-5372-06 b.Set an IP address and subnet mask for the LAN interface. For example, set the IP address and subnet mask to 10.1.1.1 and 255.0.0.0, respectively: SanJose(config-if)# ip address 10.1.1.1 255.0.0.0 Step 7Configure the WAN interface by performing the following steps: a.Change to global configuration mode: SanJose(config-if)# exit SanJose(config)#...
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2-17 Cisco 800 Series Software Configuratio Guide 78-5372-06 Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet g.North America only. If you had manually entered the SPID number, enable the BRI0 interface. SanJose(config-if)# no shutdown h.North America only. If you had specified the automatic detection of SPID numbers, enable the automatic detection of ISDN SPID numbers and switch type: SanJose(config-if)# isdn autodetect i.Outside of North America only....
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Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet 2-18 Cisco 800 Series Software Configuratio Guide 78-5372-06 f.Enable DDR: SanJose(config-if)# dialer in-band g.Specify the amount of time (in seconds) that the line can be idle before it is disconnected. For example: SanJose(config-if)# dialer idle-timeout 300 h.Specify a telephone number of the interface to be called if you are calling a single site. Enter the number 1 plus the telephone number if it is a long...
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2-19 Cisco 800 Series Software Configuratio Guide 78-5372-06 Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet these cases, when SanJose calls the ISP, SanJose does not authenticate. However, the ISP authenticates SanJose before allowing the connection. For example: SanJose(config-if)# ppp authentication chap callin SanJose(config-if)# ppp chap hostname SanJose SanJose(config-if)# ppp chap password gocisco1 m.Configure PAP. To configure CHAP, skip this step, and...
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Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet 2-20 Cisco 800 Series Software Configuratio Guide 78-5372-06 c.Set up static routes by entering the destination network, destination subnet mask, and the next hop address. In the following example, the IP address of the ISP router ISDN interface is 192.168.1.1. Typically, the ISPs do not provide IP addresses and subnet masks of their networks, but they do provide the IP addresses of the ISDN interfaces to which...
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2-21 Cisco 800 Series Software Configuratio Guide 78-5372-06 Chapter 2 Configuring Basic Networks Connecting a Public IP Network to the Internet This command determines the physical characteristics of the telephone interfaces. By specifying a country, you are configuring your telephone to use country-specific default settings for each of the physical characteristics. To get a list of supported countries and the code, enter the pots country ? command. b.Create dial peers to determine how...
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Chapter 2 Configuring Basic Networks Connecting a Remote Office to a Corporate Office 2-22 Cisco 800 Series Software Configuratio Guide 78-5372-06 Connecting a Remote Office to a Corporate Office In the network example shown in Figure 2-3 and Ta b l e 2 - 3, the Cisco 800 series router and another router, such as a Cisco 3600 router, connect the networks of a remote office and a corporate office by using a dial-on-demand ISDN line. The routes between the two routers are static IP routes that...