RACOM RipEX 1.12.2, User Manual

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priority. These values can be used to prioritize different classes of traffic (voice, video, data,
etc.).
○ Unit Manag.
Tick when RipEX management shall be possible using this VLAN. Make sure Unit Management
is On for one VLAN at least (typically the Eth0). Remember you could lose the connection to
your RipEX.
○ ARP proxy
Available only when Operating mode is set to Router.
When ticked, the respective interface generates ARP responses for all IP addresses which are
routed to the Radio interface according to the Routing table (in this specific RipEX unit).
Be very careful when using this feature, ARP proxy can disable all traffic in the LAN !!!
Note 1: When two RipEX units are connected via their Ethernet ports in the same LAN, their IP
networks defined on Radio interface must not overlap (both units would reply to the same ARP
request).
Note 2: It is highly recommended to activate ARP proxy as the last change when all the other
settings are done.
Note 3: Check your routing rules twice – routing within a single LAN requires carefull IP address
planning to fit as narrow subnet masks as possible for the individual routes.
○ Note
You may add a note to each line up to 16 characters long (UTF8 is supported) for your conveni-
ence. (E.g. “Remote unit #1 etc.). Following characters are not allowed:
" (Double quote)
` (Grave accent)
\ (Backslash)
$ (Dollar symbol)
; (Semicolon)
○ Active
You may tick/untick each line in order to make it active/not active. VLAN is active when at least
one of its subnets is active (even the first line can be inactive).
○ Modify
Add Subnet creates the new Subnet line. Add VLAN creates the new VLAN line. Delete deletes
respective line. The VLAN lines can be sorted using up and down arrows.
7.3.4. COM's
* Active only when Router mode
The COM ports in RipEX are served by special daemons, which are connected to the IP network through
a standard Linux socket. Consequently a COM port can be accessed using any of the two IP addresses
(either ETH or Radio interface) used in a RipEX and the respective UDP port number. The source IP
address of outgoing packets from COM ports is equal to IP address of the interface (either Radio or
Ethernet) through which the packet has been sent. Outgoing interface is determined in Routing table
RipEX Radio modem & Router – © RACOM s.r.o. 116
Advanced Configuration