01-12-2004 10:03 AM - edited 03-02-2019 12:49 PM
Hello
I have a networking scenario where two offices will be connected with a private line. Each office will need to configure their own router and integrate into their existing network. The ISP informed me to configure the serial connection between the routers with /30 ip addreses.
I am unsure of how to properly configure the ip addresses, interfaces and networks on the routers. Could you please review the following and see if I am on the right track? As I am fairly new to routing configuration I thank you for your assistance.
Network 1 - Office 1
Contains Router A - 2 interfaces e0, s0
Host Server A on Network 1 - Dual Nics,
Nic 1 - connects to inside interface of network 1
Nic 2 - connects to switch, switch connects to Router 1 (e0)
Serial Interface s0 - will connect to s0 Router B in Office 2
Network 2 - Office 2
Contains Router B - 2 interfaces e0, s0
Ethernet interface e0 will connect to existing network
Serial Interface s0 - will connect to s0 Router A in Office 1
Below is how I propose the configuration
HOST SERVER A
NIC#A
IP - 10.44.19.x (inside network)
Mask - 255.255.255.0
Gateway - 10.44.19.1
NIC#B
IP - 192.168.10.15
Mask - 255.255.255.252
Gateway - 192.168.10.1 (e0)
ROUTER A - OFFICE 1
Interface - e0
IP - 192.168.10.1
Mask - 255.255.255.252
Interface - s0
IP - 192.168.1.1
Mask - 255.255.255.252
Network Configuration - 192.168.10.0, 192.168.1.0
ROUTER B - OFFICE 2
Interface - s0
IP - 192.168.1.2
Mask - 255.255.255.252
Interface - e0
IP - x.x.x.x (to be determined)
Network Configuration - 192.168.1.0, x.x.x.x
01-12-2004 11:31 AM
Hello,
your configuration is ok, just be aware that:
NIC#A
IP - 10.44.19.x (inside network)
Mask - 255.255.255.0
Gateway - 10.44.19.1
cannot reach anything without the default gateway actually being configured on your router. You could add a secondary IP address to your Router A E0 interface:
ROUTER A - OFFICE 1
Interface - e0
IP - 192.168.10.1
Mask - 255.255.255.252
--> ip address 10.44.19.1 255.255.255.0 secondary
Also, but I guess that is obvious, make sure that you have either static routes or a routing protocol implemented.
HTH,
Georg
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