ADTRAN TECHNICAL SUPPORT NOTE
Configuration of the ADTRAN FSU 5622 ESP for Point-to-Point Protocol (PPP)
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Introduction
The ADTRAN FSU 5622 ESP supports both asynchronous and synchronous PPP. PPP synchronous protocol provides a PPP device access to the frame relay network and also router IP traffic from the network to the PPP device. The PPP asynchronous protocol functions the same as the PPP synchronous protocol except for the port is in async format, connected to an async device. Special control characters are used to determine frame boundaries for the async channel. Routing tables are formed through a combination of RIP and static route entries. If RIP is used, all routing tables are generated dynamically. With static routing, the user is able to force relationships. Static route tables are configured through the IP routing selection in the configuration menu.
Before You Begin
Before you begin configuration of the ADTRAN FSU 5622 ESP, you will need to know some basic information.
Information needed from the service provider:
- DLCIs and Signaling Type used by the frame relay switch. If the ADTRAN FSU 5622 ESP is being used on a frame relay circuit, the choices for Signaling Type are ANSI T1.617-D (Annex D), ITU-T Q.933-A (Annex A), and LMI. For use on a DDS circuit, the Signaling Type should be set to none and the DLCIs matched on both FSU 5622 ESPs.
- Local loop rate (56k or 64k)
- Clock Source. Determine if the clocking is being provided on the frame relay/DDS circuit.
Information needed from the end user/customer:
- DTE Sync Bit Rate. The DTE rate is the maximum data rate of the router.
- DTE Interface Type. The interface type needs to match the router's serial port interface. If the V.35 interface is chosen, the ADTRAN V.35 adapter cable will be required. It is available in a male Winchester 34 pin V.35 connector (part number 1200193L1) and a female Winchester 34 pin V.35 connector (part number 1200194L1). Both of these cables have male DB25 connectors which connect to the FSU 5622 ESP DTE ports.
- IP addressing scheme. The customer must know the IP addresses and subnet masks for the following:
- all router serial and Ethernet ports
- all local and remote LANs
- the DTE and network IP addresses and subnet masks for all FSU 5622 ESPs.
Configuration of the ADTRAN FSU 5622 ESP for PPP
For the IP addressing scheme, it is recommended that there be five different subnets between two sites:
- One subnet between the host LAN and Ethernet port of the host router
- One subnet between the serial port of the host router and the DTE port of the host FSU 5622 ESP
- One subnet between the network port of the host FSU 5622 ESP and the network port of the remote FSU 5622 ESP(s)
- One subnet between the DTE port of the remote FSU 5622 ESP and the serial port of the remote router
- One subnet between the Ethernet port of the remote router and the remote LAN
An example IP addressing scheme is shown in Figure 1.
Figure 1
In the circuit shown in Figure 1, the host FSU 5622 ESP sends data to remote FSU 5622 ESP #1 on DLCI 16 and to remote FSU 5622 ESP #2 on DLCI 17. Remote FSU 5622 ESP #1 sends data to the host on DLCI 18 and remote FSU 5622 ESP #2 also sends data to the host on DLCI 18. The two remote sites may have the same DLCI since DLCIs only have local significance. An example configuration for the host and two remote FSU 5622 ESPs on a frame relay circuit for a 56k sync PPP application using RIP and ANSI (Annex D) signaling is shown in Table 1. Any parameters which are changed from default are marked by an *.
| Host | Remote #1 | Remote #2 |
|---|
| Network Port: | | | |
| Physical Layer Options: | | | |
| *Loop Rate: | 56k | 56k | 56k |
| Clock Source: | From Network | From Network | From Network |
| | | |
| Frame Relay Options: | | | |
| Signaling Type: | ANSI | ANSI | ANSI |
| T391: | 10 | 10 | 10 |
| N391: | 6 | 6 | 6 |
| N392: | 3 | 3 | 3 |
| N393: | 4 | 4 | 4 |
| *Remote FECN: | Yes | Yes | Yes |
| | | |
| LLC2 Options: | | | |
| LLC2 ACK TO: | 5 | 5 | 5 |
| LLC2 N2 Retry Counter: | 2 | 2 | 2 |
| LLC2 k Window Size: | 7 | 7 | 7 |
| LLC2 Poll TO: | 5 | 5 | 5 |
| LLC2 Busy TO: | 5 | 5 | 5 |
| LLC2 Reject TO: | 5 | 5 | 5 |
| LLC2 Keep-Alive TO: | 3 | 3 | 3 |
| | | |
| *IP Address: | 192.168.100.1 | 192.168.100.2 | 192.168.100.3 |
| *Subnet Mask: | 255.255.255.0 | 255.255.255.0 | 255.255.255.0 |
| *Transmit RIP Packets: | Yes | Yes | Yes |
| *Process Received RIP Pckts: | Yes | Yes | Yes |
| Priority Queue Ratio: | 1 | 1 | 1 |
| PVC Options: | | | |
| DLCI: | 0 | 0 | 0 |
| DBU DLCI: | 0 | 0 | 0 |
| | | |
| DTE Port: | | | |
| *Protocol: | PPP sync | PPP sync | PPP sync |
| | | |
| Physical Layer Options: | | | |
| Interface Type: | EIA-232 | EIA-232 | EIA-232 |
| Sync Bit Rate: | 56000 | 56000 | 56000 |
| Transmit Idle Code: | Flags | Flags | Flags |
| Hdw Flow Control: | On | On | On |
| | | |
| Protocol Options: | Not available when the PPP sync protocol is enabled. |
| | | |
| Protocol Address Table: | | | |
| *IP Address: | 192.168.11.2 | 192.168.12.2 | 192.168.13.2 |
| *Subnet Mask: | 255.255.255.0 | 255.255.255.0 | 255.255.255.0 |
| *Peer IP Address: | 192.168.11.1 | 192.168.12.1 | 192.168.13.1 |
| *Transmit RIP Packets: | Yes | Yes | Yes |
| *Process Received RIP Pkts: | Yes | Yes | Yes |
| IP Routing: | | | |
| IP Route Table: | | | |
| IP Address: | 0.0.0.0 | 0.0.0.0 | 0.0.0.0 |
| Destination Port: | DTE Port 1 | DTE Port 1 | DTE Port 1 |
| Destination DLCI: | 0 | 0 | 0 |
| | | |
| *Gateway IP Address: | 0.0.0.0 | 192.168.100.1 | 192.168.100.1 |
| *Gateway Port: | None | Net | Net |
| *Gateway DLCI: | 0 | 18 | 18 |
| *Transmit ARP Packets: | Yes | Yes | Yes |
| *Process Received ARP Pkts: | Yes | Yes | Yes |
| *ARP Refresh Time: | 30 | 30 | 30 |
| | | |
| System Config: | | | |
| Change Password: | | | |
| Read Comm Name: | Public | Public | Public |
| Write Comm Name: | Private | Private | Private |
| Trap Mgmr DLCI: | 0 | 0 | 0 |
| Trap Mgmr IP Address: | 0.0.0.0 | 0.0.0.0 | 0.0.0.0 |
| Trap Mgmr Port: | None | None | None |
| Support Fragmentation: | Yes | Yes | Yes |
| Set Hour: | | | |
| Set Minute: | | | |
| Set Day: | | | |
| Set Month: | | | |
| Set Year: | | | |
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Table 1
Configuration of the Router for PPP
The serial port of each router attached to the FSU 5622 ESP must be configured for PPP encapsulation with the appropriate IP address as described in the example in Figure 1. The gateway for remote routers #1 and #2 must be defined as the IP address for the DTE port of the attached FSU 5622 ESP. For example, the gateway IP address for remote router #1 should be 192.168.12.2.
If you experience any problems using your ADTRAN product, please contact ADTRAN Technical Support.
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DISCLAIMER
ADTRAN provides the foregoing application description solely for the reader's consideration and study, and without any representation or suggestion that the foregoing application is or may be free from claims of third parties for infringement of intellectual property rights, including but not limited to, direct and contributory infringement as well as for active inducement to infringe. In addition, the reader's attention is drawn to the following disclaimer with regard to the reader's use of the foregoing material in products and/or systems. That is:
ADTRAN SPECIFICALLY DISCLAIMS ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ADTRAN BE LIABLE FOR ANY LOSS OR DAMAGE, AND FOR PERSONAL INJURY, INCLUDING BUT NOT LIMITED TO, COMPENSATORY, SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR OTHER DAMAGES.
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Last modified:
Friday, July 27, 2001.