Paul Harrison wrote:
Here's what I'm stuck on : Zone "router01" can't do name lookups (service
dns/client is enabled, resolv.conf has the nameservers, ipv4-routing and ipv4-forwarding
enabled, also ipv6 routing and forwarding enabled on router01 and dmz01). I can set up a
route to the static IP that's assigned to sppp0 on dmz01, and it's pingable, but the
packets go no further : I can't ping the IP/gateway of the ISP, or the nameservers
(nameservers are pingable from dmz01, so they aren't blocking ICMP).
I'm pretty sure that it's getting "stuck" at the sppp0 device. It's almost like the device defaults to "accept packets with a hop count of 1 only" (allowing packets from dmz01, but nothing further along the chain).
It doesn't sound like you set up NAT at any point. Did you do that?
Unless your ISP has made special provisions to know about (and route
back to) the RFC 1918 addresses you're using (the 10.10.10.* numbers),
there's no way that packets you're sending could get back to you without
network address translation taking place somewhere.
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