Default Gateway


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Default Gateway

I am am using IPv6 IP's with an OS of Debian.

Is it possible to set a *static* default gateway w/o the router being connected? Will that gateway change when the router is connected?

TIA

Last edited by Meow613; 10-02-2016 at 12:27 AM..
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TRACEROUTE6(8)						    BSD System Manager's Manual 					    TRACEROUTE6(8)

NAME
traceroute6 -- print the route IPv6 packets will take to a network node SYNOPSIS
traceroute6 [-adIlnNrvU] [-f firsthop] [-g gateway] [-m hoplimit] [-p port] [-q probes] [-s src] [-w waittime] [-A as_server] target [datalen] DESCRIPTION
The traceroute6 utility uses the IPv6 protocol hop limit field to elicit an ICMPv6 TIME_EXCEEDED response from each gateway along the path to some host. The only mandatory parameter is the destination host name or IPv6 address. The default probe datagram carries 12 bytes of payload, in addi- tion to the IPv6 header. The size of the payload can be specified by giving a length (in bytes) after the destination host name. Other options are: -a Turn on AS# lookups for each hop encountered. -A as_server Turn on AS# lookups and use the given server instead of the default. -d Debug mode. -f firsthop Specify how many hops to skip in trace. -g gateway Specify intermediate gateway (traceroute6 uses routing header). -I Use ICMP6 ECHO instead of UDP datagrams. -l Print both host hostnames and numeric addresses. Normally traceroute6 prints only hostnames if -n is not specified, and only numeric addresses if -n is specified. -m hoplimit Specify maximum hoplimit, up to 255. The default is 30 hops. -n Do not resolve numeric address to hostname. -N Use a packet with no upper layer header for the probes, instead of UDP datagrams. -p port Set UDP port number to port. -q probes Set the number of probe per hop count to probes. -r Bypass the normal routing tables and send directly to a host on an attached network. If the host is not on a directly-connected net- work, an error is returned. This option corresponds to the SO_DONTROUTE socket option; it can be used to ping a local host through an interface that has no route through it (e.g., after the interface was dropped by a routing daemon). -s src Src specifies the source IPv6 address to be used. -U Use UDP datagrams for the probes. This is the default. -v Be verbose. -w waittime Specify the delay time between probes. This program prints the route to the given destination and the round-trip time to each gateway, in the same manner as traceroute. Here is a list of possible annotations after the round-trip time for each gateway: !N Destination Unreachable - No Route to Host. !P Destination Unreachable - Administratively Prohibited. !S Destination Unreachable - Not a Neighbour. !A Destination Unreachable - Address Unreachable. ! This is printed if the hop limit is <= 1 on a port unreachable message. This means that the packet got to the destination, but that the reply had a hop limit that was just large enough to allow it to get back to the source of the traceroute6. This was more interesting in the IPv4 case, where some IP stack bugs could be identified by this behaviour. EXIT STATUS
The traceroute6 utility will exit with 0 on success, and non-zero on errors. SEE ALSO
ping(8), ping6(8), traceroute(8) HISTORY
The traceroute6 utility first appeared in WIDE hydrangea IPv6 protocol stack kit. BSD
August 24, 2009 BSD

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