Comments (3)
Seems like this fails (in tunnel.py
):
try:
nat = netfilter.table.Table('nat')
nat.append_rule('L2TP_PREROUTING_%s' % self.broker.tunnel_manager.namespace, self.prerouting_rule)
nat.append_rule('L2TP_POSTROUTING_%s' % self.broker.tunnel_manager.namespace, self.postrouting_rule)
except netfilter.table.IptablesError:
raise TunnelSetupFailed
Unfortunately tunneldigger isn't great at error reporting, all the details are thrown away here. You could try replaying the last two lines by
except netfilter.table.IptablesError as err:
logger.error("Netfilter error while setting up NAT: %s" % err)
raise TunnelSetupFailed
That should put a more useful error message into the log. What does it say?
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This should definitely be in the sources.
Error was:
message: iptables: No chain/target/match by that name.
We are handling iptables in our own firewall using shorewall which caused the chains to disappear on rule reload.
I commented out both nat rules and broker is working fine again.
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This should definitely be in the sources.
Probably not like this, but rather something that attaches the original error to the TunnelSetupFailed
.
Could you open an issue to track throwing away error information? This is not the only place where errors gets dropped.
I commented out both nat rules and broker is working fine again.
You mean you changed tunneldigger to not emit these rules? That shouldn't work, these are needed for all the connections to share the same port on the server.
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Related Issues (20)
- [Docs] max_tunnels HOT 3
- Failed to send() control packet HOT 5
- High CPU load due to a single misbehaving client HOT 2
- Change rate limiting to be per-UUID HOT 1
- No releases since 2017? HOT 3
- The client can get stuck in a high-frequency retry loop despite working brokers HOT 10
- TC/Traffic Control: Error: Invalid handle. HOT 1
- Review CI Tooling HOT 19
- Newer Kernels log error "recv short packet" for every broker packet HOT 7
- How does tunneldigger work compared to l2tp? HOT 5
- TC/Traffic Control does not always work HOT 1
- Proposal: Broker usage check on reconnect
- tunneldigger-broker: connection fails with `Error: Invalid handle.` HOT 3
- Silence `tc` output when `ignore_fails` is true
- teardown script crashes tunneldigger-broker HOT 5
- broker throwing OSError on creation of timers HOT 1
- Frequent reconnection of clients HOT 70
- setup.py is deprecated HOT 4
- Broker: Wait for interface to have an IP before listening HOT 2
- Update CI to ubuntu-22.04
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