MOXA C502 Dual-port Synchronous Interface
| Document revision: | 1.1 (Fri Mar 05 08:16:21 GMT 2004) |
| Applies to: | V2.8 |
General Information
Summary
The MikroTik RouterOS supports the MOXA C502 PCI Dual-port Synchronous 8Mb/s Adapter hardware. The V.35 synchronous interface is the standard for VSAT and other satellite modems. However, you must check with the satellite system supplier for the modem interface type.
Specifications
Packages required: synchronousLicense required: Level4
Submenu level: /interface moxa-c502
Standards and Technologies: Cisco/HDLC-X.25 (RFC 1356), Frame Relay (RFC1490), PPP (RFC-1661), PPP (RFC-1662)
Hardware usage: Not significant
Related Documents
Description
You can install up to four MOXA C502 synchronous cards in one PC box, if you have so many PCI slots available. Assuming you have all necessary packages and licences installed, in most cases it should to be done nothing at that point (all drivers are loaded automatically).
Additional Resources
For more information about the MOXA C502 Dual-port Synchronous 8Mb/s Adapter hardware please see:
- C502 Dual Port Sync Board User's Manuall the user's manual in PDF format
Synchronous Interface Configuration
Submenu level: /interface moxa-c502Description
Moxa c502 synchronous interface is shown under the interfaces list with the name moxa-c502-N
Property Description
name (name; default: moxa-c502-N) - interface name cisco-hdlc-keepalive-interval (time; default: 10s) - keepalive period in seconds clock-rate (integer; default: 64000) - speed of internal clock clock-source (external | internal | tx-from-rx | tx-internal; default: external) - clock source frame-relay-dce (yes | no; default: no) - operate or not in DCE mode frame-relay-lmi-type (ansi | ccitt; default: ansi) - Frame-relay Local Management Interface type:ccitt - set LMI type to CCITT Q933a (also known as Annex A)
Notes
There will be TWO interfaces for each MOXA C502 card since the card has TWO ports.
The MikroTik driver for the MOXA C502 Dual Synchronous adapter allows you to unplug the V.35 cable from one modem and plug it into another modem with a different clock speed, and you do not need to restart the interface or router.
The default encapsulation method for CISCO is HDLC. If you have not changed this setting on CISCO, you should change line-protocol to cisco-hdlc for Moxa C502 interface.
Example
[admin@MikroTik] interface moxa-c502> set 0,1 line-protocol=cisco-hdlc
[admin@MikroTik] interface moxa-c502> print
Flags: X - disabled, R - running
0 R name="moxa-c502-1" mtu=1500 line-protocol=cisco-hdlc clock-rate=64000
clock-source=external frame-relay-lmi-type=ansi frame-relay-dce=no
cisco-hdlc-keepalive-interval=10s
1 R name="moxa-c502-2" mtu=1500 line-protocol=cisco-hdlc clock-rate=64000
clock-source=external frame-relay-lmi-type=ansi frame-relay-dce=no
cisco-hdlc-keepalive-interval=10s
[admin@MikroTik] interface moxa-c502>
You can monitor the status of the synchronous interface:
[admin@MikroTik] interface moxa-c502> monitor 0
dtr: yes
rts: yes
cts: no
dsr: no
dcd: no
[admin@MikroTik] interface moxa-c502>
Connect a communication device, e.g., a baseband modem, to the V.35 port and turn it on. If the link is working properly the status of the interface is:
[admin@MikroTik] interface moxa-c502> monitor 0
dtr: yes
rts: yes
cts: yes
dsr: yes
dcd: yes
[admin@MikroTik] interface moxa-c502>
Troubleshooting
Description
-
The synchronous interface does not show up under the interfaces list
Obtain the required license for synchronous feature
-
The synchronous link does not work
Check the V.35 cabling and the line between the modems. Read the modem manual
Synchronous Link Application Examples
MikroTik Router to MikroTik Router
Let us consider the following network setup with two MikroTik Routers connected to a leased line with baseband modems:
The driver for MOXA C502 card should be loaded and the interface should be enabled according to the instructions given above. The IP addresses assigned to the synchronous interface should be as follows:
[admin@MikroTik] ip address> add address 1.1.1.1/32 interface wan \ \... network 1.1.1.2 broadcast 255.255.255.255 [admin@MikroTik] ip address> print Flags: X - disabled, I - invalid, D - dynamic # ADDRESS NETWORK BROADCAST INTERFACE 0 10.0.0.254/24 10.0.0.254 10.0.0.255 ether2 1 192.168.0.254/24 192.168.0.254 192.168.0.255 ether1 2 1.1.1.1/32 1.1.1.2 255.255.255.255 wan [admin@MikroTik] ip address> /ping 1.1.1.2 1.1.1.2 64 byte pong: ttl=255 time=31 ms 1.1.1.2 64 byte pong: ttl=255 time=26 ms 1.1.1.2 64 byte pong: ttl=255 time=26 ms 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 26/27.6/31 ms [admin@MikroTik] ip address>
The default route should be set to the gateway router 1.1.1.2:
[admin@MikroTik] ip route> add gateway 1.1.1.2 interface wan
[admin@MikroTik] ip route> print
Flags: X - disabled, I - invalid, D - dynamic, J - rejected,
C - connect, S - static, R - rip, O - ospf, B - bgp
# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 S 0.0.0.0/0 r 1.1.1.2 1 wan
1 DC 10.0.0.0/24 r 10.0.0.254 1 ether2
2 DC 192.168.0.0/24 r 192.168.0.254 0 ether1
3 DC 1.1.1.2/32 r 0.0.0.0 0 wan
[admin@MikroTik] ip route>
The configuration of the MikroTik router at the other end is similar:
[admin@MikroTik] ip address> add address 1.1.1.2/32 interface moxa \ \... network 1.1.1.1 broadcast 255.255.255.255 [admin@MikroTik] ip address> print Flags: X - disabled, I - invalid, D - dynamic # ADDRESS NETWORK BROADCAST INTERFACE 0 10.1.1.12/24 10.1.1.12 10.1.1.255 Public 1 1.1.1.2/32 1.1.1.1 255.255.255.255 moxa [admin@MikroTik] ip address> /ping 1.1.1.1 1.1.1.1 64 byte pong: ttl=255 time=31 ms 1.1.1.1 64 byte pong: ttl=255 time=26 ms 1.1.1.1 64 byte pong: ttl=255 time=26 ms 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 26/27.6/31 ms [admin@MikroTik] ip address>
MikroTik Router to Cisco Router
Let us consider the following network setup with MikroTik Router connected to a leased line with baseband modems and a CISCO router at the other end:
The driver for MOXA C502 card should be loaded and the interface should be enabled according to the instructions given above. The IP addresses assigned to the synchronous interface should be as follows:
[admin@MikroTik] ip address> add address 1.1.1.1/32 interface wan \ \... network 1.1.1.2 broadcast 255.255.255.255 [admin@MikroTik] ip address> print Flags: X - disabled, I - invalid, D - dynamic # ADDRESS NETWORK BROADCAST INTERFACE 0 10.0.0.254/24 10.0.0.254 10.0.0.255 ether2 1 192.168.0.254/24 192.168.0.254 192.168.0.255 ether1 2 1.1.1.1/32 1.1.1.2 255.255.255.255 wan [admin@MikroTik] ip address> /ping 1.1.1.2 1.1.1.2 64 byte pong: ttl=255 time=31 ms 1.1.1.2 64 byte pong: ttl=255 time=26 ms 1.1.1.2 64 byte pong: ttl=255 time=26 ms 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 26/27.6/31 ms [admin@MikroTik] ip address>
The default route should be set to the gateway router 1.1.1.2:
[admin@MikroTik] ip route> add gateway 1.1.1.2
[admin@MikroTik] ip route> print
Flags: X - disabled, I - invalid, D - dynamic, J - rejected,
C - connect, S - static, R - rip, O - ospf, B - bgp
# DST-ADDRESS G GATEWAY DISTANCE INTERFACE
0 S 0.0.0.0/0 r 1.1.1.2 1 wan
1 DC 10.0.0.0/24 r 10.0.0.254 0 ether2
2 DC 192.168.0.0/24 r 192.168.0.254 0 ether1
3 DC 1.1.1.2/32 r 1.1.1.1 0 wan
[admin@MikroTik] ip route>
The configuration of the Cisco router at the other end (part of the configuration) is:
CISCO#show running-config Building configuration... Current configuration: ... ! interface Ethernet0 description connected to EthernetLAN ip address 10.1.1.12 255.255.255.0 ! interface Serial0 description connected to MikroTik ip address 1.1.1.2 255.255.255.252 serial restart-delay 1 ! ip classless ip route 0.0.0.0 0.0.0.0 10.1.1.254 ! ... end CISCO#
Send ping packets to the MikroTik router:
CISCO#ping 1.1.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 28/32/40 ms CISCO#
Note! Keep in mind that for the point-to-point link the network mask is set to 32 bits, the argument network is set to the IP address of the other end, and the broadcast address is set to 255.255.255.255.