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I would like to have an IP address from the /29 on an interface, maybe a VLAN interface, and be able to control access to it with an ACL and be able to telnet into it. &nbsp;However your idea is interesting. &nbsp;Would the default route to the Comcast side of the /30 apply to both subnets? &nbsp;Could I do static NAT's with this configuration? &nbsp;I assume I would control access to both subnets with the ACL on the WAN interface. &nbsp;Trying to get my head around this...
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I am liking this. &nbsp;Wouldn't the IP NAT inside command go on the LAN interface. &nbsp;Also if I need a VPN tunnel I assume the crypto map command would go on GigabitEthernet0. &nbsp;And if I don't need to assign machines IP addresses on the 172.24.0.0 I don't need a VLAN interface in this network.
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I was confusing the /29 with the private network. &nbsp;My bad. &nbsp;Thanks for your quick and very helpful response!
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Can I configure a /30 transport network and a /29 usable on the same router, it would be a Cisco 891. &nbsp;Comcast used to just give us a /29 usable which we configured on our 891 and everything was great. &nbsp;Now they give us a /30 for transport and a /29 usable. &nbsp;The only way I know how to do it is to have one router with one interface facing the internet with the /30 and one IP address from the /29 on the other interface. &nbsp;Then use a second router with one interface with an IP address from the /29 and point the default route to the first router. &nbsp;My client is not crazy about buying 2 routers for every location. &nbsp;I was able to get Comcast to provision only the /29 but it was a big hassle and there internal ACLs were causing all kinds of problems.
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Can I configure a /30 transport network and a /29 usable on the same router, it would be a Cisco 891.  Comcast used to just give us a /29 usable which we configured on our 891 and everything was great.  Now they give us a /30 for transport and a /29 usable.  The only way I know how to do it is to have one router with one interface facing the internet with the /30 and one IP address from the /29 on the other interface.  Then use a second router with one interface with an IP address from the /29 and point the default route to the first router.  My client is not crazy about buying 2 routers for every location.  I was able to get Comcast to provision only the /29 but it was a big hassle and there internal ACLs were causing all kinds of problems.

Can I configure a /30 transport network and a /29 usable on the same router?

A router is a networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. The most familiar type of routers are home and small office cable or DSL routers that simply pass data, such as web pages, email, IM, and videos between computers and the Internet. More sophisticated routers, such as enterprise routers, connect large business or ISP networks up to the powerful core routers that forward data at high speed along the optical fiber lines of the Internet backbone. Though routers are typically dedicated hardware devices, use of software-based routers has grown increasingly common.

Routers

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.