Document revision 5-Nov-2002
This document applies to the MikroTik RouterOS V2.6
The MikroTik RouterOS supports the MOXA C101 Synchronous 4Mb/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.
For more information about the MOXA C101 Synchronous 4Mb/s Adapter hardware please see the relevant documentation:
The following topics are covered in this manual:
[admin@MikroTik] > sys package print Flags: I - invalid # NAME VERSION BUILD-TIME UNINSTALL 0 system 2.6beta4 aug/09/2002 20:22:14 no 1 ppp 2.6beta4 aug/09/2002 20:28:01 no 2 moxa-c101 2.6beta4 aug/09/2002 20:53:57 no 3 pppoe 2.6beta4 aug/09/2002 20:29:18 no 4 pptp 2.6beta4 aug/09/2002 20:28:43 no 5 ssh 2.6beta4 aug/09/2002 20:25:31 no 6 advanced-tools 2.6beta4 aug/09/2002 20:53:37 no 7 cyclades 2.6beta4 aug/09/2002 20:52:00 no 8 framerelay 2.6beta4 aug/09/2002 20:52:09 no [admin@MikroTik] >
[admin@MikroTik] > system resource irq print Flags: U - unused IRQ OWNER 1 keyboard 2 APIC U 3 4 serial port U 5 U 6 U 7 U 8 9 ether1 U 10 11 ether2 U 12 U 13 14 IDE 1 [admin@MikroTik] >
The PCI variant is detected automatically.
| DB25f | Signal | Direction | V.35m |
|---|---|---|---|
| 4 | RTS | OUT | C |
| 5 | CTS | IN | D |
| 6 | DSR | IN | E |
| 7 | GND | - | B |
| 8 | DCD | IN | F |
| 10 | TxDB | OUT | S |
| 11 | TxDA | OUT | P |
| 12 | RxDB | IN | T |
| 13 | RxDA | IN | R |
| 14 | TxCB | IN | AA |
| 16 | TxCA | IN | Y |
| 20 | DTR | OUT | H |
| 22 | RxCB | IN | X |
| 23 | RxCA | IN | V |
| short 9 and 25 pin | |||
[admin@MikroTik] driver> add name=c101 mem=0xd0000 [admin@MikroTik] driver> print Flags: I - invalid, D - dynamic # DRIVER IRQ IO MEMORY ISDN-PROTOCOL 0 D RealTek 8139 1 Moxa C101 Synchronous 0xd0000 [admin@MikroTik] driver>
There can be several reasons for a failure to load the driver:
For the MOXA C101 PCI card driver is loaded automatically:
[admin@MikroTik] > /driver print Flags: I - invalid, D - dynamic # DRIVER IRQ IO MEMORY ISDN-PROTOCOL 0 D Moxa C101 PCI 1 D RealTek 8139 [admin@MikroTik] >
[admin@MikroTik] > interface print Flags: X - disabled, D - dynamic, R - running # NAME TYPE MTU 0 R ether1 ether 1500 1 X ether2 ether 1500 2 X ether3 ether 1500 3 X sync1 sync 1500 [admin@MikroTik] > interface [admin@MikroTik] interface> set 3 name moxa [admin@MikroTik] interface> enable moxa [admin@MikroTik] interface> print Flags: X - disabled, D - dynamic, R - running # NAME TYPE MTU 0 R ether1 ether 1500 1 X ether2 ether 1500 2 X ether3 ether 1500 3 moxa sync 1500 [admin@MikroTik] >
More configuration and statistics parameters can be found under the /interface synchronous menu:
[admin@MikroTik] interface> synchronous
[admin@MikroTik] interface synchronous> print
Flags: X - disabled
0 name="moxa" mtu=1500 line-protocol=cisco-hdlc clock-rate=64000
clock-source=tx-from-rx frame-relay-lmi-type=ansi frame-relay-dce=no
cisco-hdlc-keepalive-interval=10s ignore-dcd=no
[admin@MikroTik] interface synchronous> set ?
changes properties of one or several items.
<numbers> list of item numbers
cisco-hdlc-keepalive-interval
clock-rate
clock-source
disabled
frame-relay-dce Operate in DCE mode
frame-relay-lmi-type
ignore-dcd Ignore DCD
line-protocol Line protocol
mtu Maximum Transmit Unit
name New interface name
[admin@MikroTik] interface synchronous> set
Argument description:
numbers - Interface number in the list
cisco-hdlc-keepalive-interval - Keepalive period in seconds (0..32767)
clock-rate - Speed of internal clock
clock-source - Clock source (external, internal, tx-from-rx, tx-internal)
disabled - disable or enable the interface
frame-relay-dce - Operate in DCE mode (yes, no
frame-relay-lmi-type - Frame-Relay Local Management Interface type (ansi, ccitt)
ignore-dcd - Ignore DCD (yes, no)
line-protocol - Line protocol (cisco-hdlc, frame-relay, sync-ppp)
mtu - Maximum Transmit Unit (68...1500 bytes). Default value is 1500 bytes.
name - New interface name
You can monitor the status of the synchronous interface:
[admin@MikroTik] interface synchronous> monitor 0
dtr: yes
rts: yes
cts: no
dsr: no
dcd: no
[admin@MikroTik] interface synchronous>
If you purchased the MOXA C101 Synchronous card from MikroTik, you have received a V.35 cable with it. This cable should work for all standard modems, which have V.35 connections. For synchronous modems, which have a DB-25 connection, you should use a standard DB-25 cable.
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 synchronous> monitor 0
dtr: yes
rts: yes
cts: yes
dsr: yes
dcd: yes
[admin@MikroTik] interface synchronous>
The MikroTik driver for the MOXA C101 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.
Two possible synchronous line configurations are discussed in the following examples:
The driver for MOXA C101 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>
Note, 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. 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 C101 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>
Note, 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. 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 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#