Powell Electrical Manufacturing Co.
Houston
Key RLAN functions for the proposed solution include:
Virtual Connections and IP Protocol Spoofing - Virtual connections suspend and resume a physical dial-up connection. When combined with IP spoofing and applications that do not require a single continuous link (i.e. e-mail and web browsers), virtual connections save on line tariffs. Spoofing maintains the protocol connection by providing basic knowledge that a virtual connection exists. A virtual connection is initiated by the DIALs client that supports SPAP, and only the client has the ability to drop and resume the connection. When the physical link is down, any traffic destined for the client is discarded. The allocated IP address is used throughout the virtual suspension and resumption. PPP Multilink Protocol - This feature allows more than one type of PPP circuit to be bundled into one virtual PPP circuit. By managing multiple independent links between two routers, the total bandwidth of one virtual PPP circuit comes close to the bandwidth of the member links. The type of PPP circuit used may be leased, ISDN dial-circuits, V.34 dial-circuits, V.25bis dial-circuits or Layer-2 tunneled circuits. Microsoft Dial-Up Networking (DUN) Client Support - Extensions to MS-CHAP enable the 2212 Remote Access Servers to use additional authentication features available in MS DUN clients including authenticator controlled authentication retries and specific reason for failure. In addition, support for Microsoft PPP Encryption (MPPE) protocol and Callback Control Protocol (CBCP) are available. Caller ID Authentication and Callback - This feature supports single-user call charge reversal for digital ISDN connections. When the user initiates a digital ISDN connection with the Callback feature, the remote access server rejects the original outgoing call and calls back the caller using the Caller ID. This should be used when billing originates from only one end of an ISDN connection or it can be used for added security. This function may be used by IBM DIALs clients for Windows 95, Windows 98, or OS/2, and for connections between 2210's, 2212's and 2216's. ISDN call blocking is also supported. Authentication servers, TACACS, TACACS+ and RADIUS can be used so that names and passwords don't have to be configured at each router. In addition, remote authentication protocols TACACS+ or RADIUS support authorization and accounting. The function allows unique authentication, authorization and accounting servers to be specified for all PPP connections to the 2212. Each server may also have a unique backup server. DIALs Client: IBM provides DIALs Clients for remote access users at no additional cost. The DIALs Server allows remote users to dial-in to a LAN and access the resources of the LAN as if they were locally attached with a LAN adapter. This facilitates full multiprotocol capability for RLAN users, including IPX. DIAls Client offers IBM's LLC2 interface for the application. This minimizes the changes in the application parameters when user travels daily between home office and the company office.- Proxy Dynamic Host Configuration Protocol (DHCP) allows for dynamic allocation of IP addresses from a pool located on a server assessable by the router.
- Microsoft Point to Point Compression (MPPC) support for PPP link enables performance increases for low speed links.
- SecureID to protect serial ports from unauthorized, dial-in access.
- Dial-in address pooling to assign an IP address for a specific user for the duration of the session.
- A workstation running IBM DIALs Client or another PPP dial-in client.
- ISDN interfaces, modems or Digital Modem Adapter connected to the WAN ports of the 2212.
85H4664 IBM 2212 mod 40F with SW $6400
85H4722 10/100 Eth PMC Adapter $700
85H8812 T1 24-Channel Digital
Modem adapt. $6600
85H8812 T1 24-Channel Digital
Modem adapt. $6600
---------------------------------------
Total System with Software $20300
Cables:
Frame Relay:
60G3902 V.35 cable $100
Leased Internet Connection:
60G3902 V.35 cable $100
10/100 Ethernet:
41H9082 RJ-45 Category 5 Cable $50
RLAN connections:
30L6571 Digital Modem T1
Cat 5 Cable $100
30L6571 Digital Modem T1
Cat 5 Cable $100
---------------------------------------
Total System
including all cables $20750
RELATED LINKSAdditional responses
Plus the original RFP and a sample RFP from The Gartner Group.
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