Radio PC Card Configuration 51
E-EQ-MX2RG-L-ARC MX2 Reference Guide
Proxy ARP should be used with care and not in conjunction with RIP. When more than one host
responds to an ARP request, it can cause confusion and even lead to system crashes. This is
possible in situations where more than one gateway implements Proxy ARP to a common
destination.
When “RIP advertising” is selected, all interfaces advertise all routes except those routes making
use of that specific interface (split horizon) and routes marked private. A route which is dropped
as a result of a RIP update or which becomes unavailable as a result if its associated interface
going into the down state, is immediately advertised as being infinite (metric = 16) and is not
advertised until it becomes available again. In order for an interface to be used for advertising, a
route without a gateway using that interface must be available. The advertisement is sent as a sub-
net broadcast using the net mask of the host and the IP address of the interface.
When “RIP using” is selected, routes are updated according to received RIP advertisements.
Routes added or amended as a result of RIP, have a timeout associated with them. If another RIP
advertisement is not received during that time, the route is dropped. A route is also dropped if an
advertisement of infinity (metric = 16) is received. To prevent dropping a route, it must be marked
as static. The metric of a route marked static is never updated by a RIP advertisement. Instead a
duplicate route is added before the static route. If the duplicate route is dropped as a result of a
timeout or RIP, the static route is used again.
Examples
route add default ipx0
route add unix_net eth0
route add unix_host ipx1 unx_gate
route add unix_net2 eth0 /eth 1
route add unix_ net ipx0 unx_ gate
route add subnet/26 eth0 sub_gw
route drop unix_net
route can specify a Proxy ARP on a route, as follows:
route add net interface gateway metric [proxy]
When using Proxy ARP, gateway and metric must be specified. If no gateway is used, none can
be specified. For example:
route add 192.6.1.0 ifx25 none 5 proxy
tcp
tcp commands display or set various TCP operating parameters. The TCP configuration
commands are put into SOCKETS.CFG.
Syntax
tcp irtt [time]
tcp lport [port_number]
tcp mss [size]
tcp retry [number]
tcp rtt [time]
tcp smss [size]
tcp timemax [time]
tcp window [size]
