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Question about IP for router on the edge of network

Hello there

 

Pretty stupid question probably, I'm quite new to this, but I have a packet tracer file that I'm setting up a WAN in, and I have DHCP set up on 3 different LANS, but am unsure of how to IP the router on the edge of each network. Should i just add it to my DHCP addressing scheme, or can I give it a static IP somehow?

 

Packet tracer file attached

passwords for all devices are:

Console: letmein

Priv: c1$c0

 

Many thanks

JM

2 Replies 2

pieterh
VIP
VIP

yes you can give the router a static address
if this routers address  is the default gateway for a subnet, then is even necessary to give it a static address
else you cannot configure this address in the DHCP options returned with the DHCP lease
when configuring a DHCP scope you have the option to exclude a range of addresses which you than can use for fixed assignments

Hello,

 

-->  I have DHCP set up on 3 different LANS, but am unsure of how to IP the router on the edge of each network

 

I am not sure what you mean by that in the context of your topology (there are three different ones in your file). You don't have a router, but several layer 3 switches ?

 

Either way, the default gateway set in the scopes on the DHCP server need to be the IP addresses of the SVIs (Vlan interfaces) for the respective Vlans. Just set the start addresses to an address that excludes the IP address of the Vlan interface. Packet Tracer has a quirk: if you don't exclude the IP address of the Vlan interface from the scope, it will be assigned to a client.