Messages in this thread | | | Date | Mon, 8 Apr 2002 22:02:15 +0200 | From | Claus Fischer <> | Subject | Spoof protection with redundant routes |
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I have a box with two redundant CIPE tunnels to a remote network 10.36.x.x.
Routing table:
Destination Gateway Genmask ... Iface ... 10.36.1.12 0.0.0.0 255.255.255.255 UH 0 0 0 cipcb3 10.36.1.11 0.0.0.0 255.255.255.255 UH 0 0 0 cipcb1 10.36.0.0 10.36.1.12 255.255.0.0 UG 0 0 0 cipcb3 10.36.0.0 10.36.1.11 255.255.0.0 UG 0 0 0 cipcb1 ...
Now when a packet comes in from 10.36.2.2 on cipcb1, the spoof protection kills it, since the outgoing packet would take the route via cipcb3 which is first. I didn't quite expect that initially.
- Is that known and by design? - Is that the desired behaviour? - Is there some possibility to change that? - Do I have a choice other than to turn off rp_filter?
Claus
-- Claus Fischer <claus.fischer@clausfischer.com> http://www.clausfischer.com/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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