RACOM RipEX2, Руководство пользователя

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GRE L3 Enable
– switches all L3 tunnels On or Off
Individual L3 tunnels:
Enable
– enables actual L3 tunnel
Note
– Informational note
Peer address
– IP address of the equipment with the second end of the tunnel. This address is the expected
source address of incoming GRE packets from the peer.
Tunnel address
/ Mask – IP address and mask of the GRE tunnel interface
Key enabled
– enables using key identification of the tunnel from/to the same peer
Key
– identification number of the tunnel Number {0 – 4,294,967,295}, default = 0
MTU
– MTU of the L2 tunnel. Number {70 – 1476}, default = 1476
Overhead of the L3 tunnel is 24 B, so it should be GRE MTU = Path MTU - 24. If the MTUZ is bigger
than is allowed along the route, the GRE packets will be discarded and ICMP report will be send
back to the source of the original packet (Path MTU discovery).
7.5. Security
User authentication is required to access RipEX unit management. There are two types of user authen-
tication which differ in the user account location:
Local authentication – user accounts are stored directly in the RipEX unit
Remote authentication – user accounts are stored on a remote authentication server (RADIUS is
implemented)
141 © RACOM s.r.o. – RipEX2 Radio modem & Router
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