07-06-2007
Quote:
Originally Posted by
neel.gurjar
192.168.0.254 is Internet Router.
Can you disconnect from the internet router or otherwise isolate these three machines?
I'm wondering if some packets are that are supposed to be going between server1 and server2 via server3 are actually reaching the correct place because of the internet router rather than server3 doing it's job.
Do the two routes I describe make sense?
As far as I can make out server1's default route is out to the internet-router, we want to have it configured to send packets destined for 10.27.40.X to go via 192.168.0.5. There seemed to be just a single similar reference at server1 "10.27.40.2 192.168.0.5 UGH 1 20" which is refering to a single host, we should want this to be a "static/persistent route" and apply to the whole subnet.
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LEARN ABOUT X11R4
tc-route
Route classifier in tc(8) Linux Route classifier in tc(8)
NAME
route - route traffic control filter
SYNOPSIS
tc filter ... route [ from REALM | fromif TAG ] [ to REALM ] [ classid CLASSID ] [ action ACTION_SPEC ]
DESCRIPTION
Match packets based on routing table entries. This filter centers around the possibility to assign a realm to routing table entries. For
any packet to be classified by this filter, a routing table lookup is performed and the returned realm is used to decide on whether the
packet is a match or not.
OPTIONS
action ACTION_SPEC
Apply an action from the generic actions framework on matching packets.
classid CLASSID
Push matching packets into the class identified by CLASSID.
from REALM
fromif TAG
Perform source route lookups. TAG is the name of an interface which must be present on the system at the time of tc invocation.
to REALM
Match if normal (i.e., destination) routing returns the given REALM.
EXAMPLES
Consider the subnet 192.168.2.0/24 being attached to eth0:
ip route add 192.168.2.0/24 dev eth0 realm 2
The following route filter will then match packets from that subnet:
tc filter add ... route from 2 classid 1:2
and pass packets on to class 1:2.
NOTES
Due to implementation details, realm values must be in a range from 0 to 255, inclusive. Alternatively, a verbose name defined in
/etc/iproute2/rt_realms may be given instead.
SEE ALSO
tc(8), ip-route(8)
iproute2 21 Oct 2015 Route classifier in tc(8)