Document revision 14-Dec-2001
This document applies to the MikroTik RouterOS V2.4
The MikroTik RouterOS supports the MOXA C101 Synchronous 5Mb/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 5Mb/s Adapter hardware please see the relevant documentation:
The following topics are covered in this manual:
The MikroTik Router should have the moxa c101 synchronous software package installed. The software package file moxa-c101-2.4.y.npk can be downloaded from MikroTik’s web page www.mikrotik.com. To install the package, please upload the correct version file to the router and reboot. Use BINARY mode ftp transfer. After successful installation the package should be listed under the installed software packages list, for example:
[MikroTik] > system package print # NAME VERSION BUILD-TIME UNINSTALL 0 routing 2.4.5 dec/04/2001 14:54:29 no 1 snmp 2.4.5 dec/04/2001 14:54:41 no 2 ppp 2.4.5 dec/04/2001 14:55:36 no 3 pppoe 2.4.5 dec/04/2001 14:56:30 no 4 ssh 2.4.5 dec/04/2001 14:58:22 no 5 pptp 2.4.5 dec/04/2001 14:55:54 no 6 moxa-c101 2.4.5 dec/04/2001 14:56:39 no 7 framerelay 2.4.5 dec/04/2001 15:07:21 no 8 system 2.4.5 dec/04/2001 14:53:19 no [MikroTik] >
The MOXA C101 Synchronous Adapter requires the Synchronous Feature License. One license is for one installation of the MikroTik RouterOS, disregarding how many cards are installed in one PC box. The Synchronous Feature is not included in the Free Demo or Basic Software License. The Synchronous Feature cannot be obtained for the Free Demo License. It can be obtained only together with the Basic Software License.
Before installing the synchronous adapter, please check the availability of free IRQ's:
[MikroTik] > system resource irq print IRQ USED OWNER 1 yes keyboard 2 yes APIC 3 yes serial port 4 yes serial port 5 no 6 no 7 no 8 no 9 yes ether1 10 no 11 no 12 no 13 yes FPU 14 yes IDE 1 [MikroTik] >
You can install up to four MOXA C101 synchronous cards in one PC box, if you have so many ISA slots and IRQs available. The basic installation steps of the adapter should be as follows:
Please note, that not all combinations of memory mapping base addresses and IRQ's may work on your motherboard. It is recommended that you choose one IRQ that is not used in your system, and then try an acceptable memory base address setting.
The MOXA C101 ISA card requires the driver to be loaded by issuing the following command:
[MikroTik] driver> add name=c101 mem=0xd0000 [MikroTik] driver> print # DRIVER IRQ IO MEMORY ISD... 0 RealTek RTL8129/8139 D 1 Moxa C101 Synchronous 0xd0000 [MikroTik] driver>
There can be several reasons for a failure to load the driver:
If the driver has been loaded successfully (no error messages), and you have the required Synchronous Software License, then the synchronous interface should appear under the interfaces list with the name syncn, where n is 0,1,2,... You can change the interface name to a more descriptive one using the 'set' command. To enable the interface, use the 'enable' command:
[MikroTik] > interface print Flags: X - disabled, D - dynamic # NAME MTU TYPE 0 ether1 1500 ether 1 X sync1 1500 sync [MikroTik] > [MikroTik] interface> set 1 name moxa [MikroTik] interface> enable moxa [MikroTik] > interface print Flags: X - disabled, D - dynamic # NAME MTU TYPE 0 ether1 1500 ether 1 moxa 1500 sync [MikroTik] >
More configuration and statistics parameters can be found under the '/interface synchronous' menu:
[MikroTik] interface> synchronous
[MikroTik] interface synchronous> print
0 name: moxa mtu: 1500 rx-clock-source: rxc-line tx-clock-source: rxc-clock
speed: 1092266 null-modem: no line-protocol: cisco-hdlc
[MikroTik] interface synchronous> set ?
_number_ Interface name or number
name New interface name
mtu Maximum Transmit Unit
rx-clock-source Receive clock source
tx-clock-source Transmit clock source
speed Speed of internal clock
null-modem Ignore DCD
line-protocol Line protocol
[MikroTik] interface synchronous> set
Argument description:
number - Interface number in the list
name - Interface name
mtu - Maximum Transmit Unit (68...1600 bytes). Deafault value is 1500 bytes.
rx-clock-source - Receive clock source (internal / rxc-line)
tx-clock-source - Transmit clock source (internal / rxc-clock / txc-line)
speed - Speed of internal clock
line-protocol - Line protocol (cisco-hdlc / sync-ppp)
null-modem - Enable/Disable null-modem mode (yes / no). In null-modem mode the DCD signal is ignored.
You can monitor the status of the synchronous interface:
[MikroTik] interface synchronous> monitor 0
dtr: yes
rts: yes
cts: no
dsr: no
dcd: no
[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:
[MikroTik] interface synchronous> monitor 0
dtr: yes
rts: yes
cts: yes
dsr: yes
dcd: yes
[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:
Let us consider the following network setup with two MikroTik Routers connected to a leased line with baseband modems:
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:
[MikroTik] ip address> add address 1.1.1.1/32 interface wan \ network 1.1.1.2 broadcast 255.255.255.255 [MikroTik] ip address> print # ADDRESS NETMASK NETWORK BROADCAST INTERFACE 0 10.0.0.254 255.255.255.0 10.0.0.254 10.0.0.255 ether2 1 192.168.0.254 255.255.255.0 192.168.0.254 192.168.0.255 ether1 2 1.1.1.1 255.255.255.255 1.1.1.2 255.255.255.255 wan [MikroTik] ip address> /ping 1.1.1.2 1.1.1.2 pong: ttl=255 time=27 ms 1.1.1.2 pong: ttl=255 time=27 ms 1.1.1.2 pong: ttl=255 time=27 ms 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 27/27.0/27 ms [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:
[MikroTik] ip route> add gateway 1.1.1.2 interface wan [MikroTik] ip route> pr # DST-ADDRESS NETMASK GATEWAY PREF-ADDRESS INTE... 0 10.0.0.0 255.255.255.0 0.0.0.0 10.0.0.254 ether2 D K 1 192.168.0.0 255.255.255.0 0.0.0.0 192.168.0.254 ether1 D K 2 1.1.1.2 255.255.255.255 0.0.0.0 1.1.1.1 wan D K 3 0.0.0.0 0.0.0.0 1.1.1.2 0.0.0.0 wan [MikroTik] ip route>
The configuration of the Mikrotik router at the other end is similar:
[MikroTik] ip address> add address 1.1.1.2/32 interface moxa \ network 1.1.1.1 broadcast 255.255.255.255 [MikroTik] ip address> print # ADDRESS NETMASK NETWORK BROADCAST INTERFACE 0 10.1.1.12 255.255.255.0 10.1.1.12 10.1.1.255 Public 1 1.1.1.2 255.255.255.255 1.1.1.1 255.255.255.255 moxa [MikroTik] ip address> /ping 1.1.1.1 1.1.1.1 pong: ttl=255 time=27 ms 1.1.1.1 pong: ttl=255 time=27 ms 1.1.1.1 pong: ttl=255 time=27 ms 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 27/27.0/27 ms [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:
[MikroTik] ip address> add address 1.1.1.1/32 interface wan \ network 1.1.1.2 broadcast 255.255.255.255 [MikroTik] ip address> print # ADDRESS NETMASK NETWORK BROADCAST INTERFACE 0 10.0.0.254 255.255.255.0 10.0.0.254 10.0.0.255 ether2 1 192.168.0.254 255.255.255.0 192.168.0.254 192.168.0.255 ether1 2 1.1.1.1 255.255.255.255 1.1.1.2 255.255.255.255 wan [MikroTik] ip address> /ping 1.1.1.2 1.1.1.2 pong: ttl=255 time=27 ms 1.1.1.2 pong: ttl=255 time=27 ms 1.1.1.2 pong: ttl=255 time=27 ms 3 packets transmitted, 3 packets received, 0% packet loss round-trip min/avg/max = 27/27.0/27 ms [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:
[MikroTik] ip route> add gateway 1.1.1.2 interface wan [MikroTik] ip route> pr # DST-ADDRESS NETMASK GATEWAY PREF-ADDRESS INTE... 0 10.0.0.0 255.255.255.0 0.0.0.0 10.0.0.254 ether2 D K 1 192.168.0.0 255.255.255.0 0.0.0.0 192.168.0.254 ether1 D K 2 1.1.1.2 255.255.255.255 0.0.0.0 1.1.1.1 wan D K 3 0.0.0.0 0.0.0.0 1.1.1.2 0.0.0.0 wan [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#