19 lines
1.2 KiB
Plaintext
19 lines
1.2 KiB
Plaintext
1. IT / SYSTEMS ENGINEERING
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SCORE: 5.0/10
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Strengths:
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- Excellent diagnostic commands: ip route get, ip rule, tcpdump, conntrack, NAT rules, rp_filter.
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- Correctly distinguishes rp_filter as a drop mechanism and ARP as separate from IP source selection.
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- Correctly prioritizes routing investigation.
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Major errors:
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- Incorrectly claims conntrack "pins" the egress interface. Conntrack tracks flow/NAT state; normal routing still determines egress.
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- Docker's standard MASQUERADE rule applies to Docker-source traffic (e.g. 172.17.0.0/16), not arbitrary host replies from 192.168.50.10.
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- Docker does not normally make host-local replies intermittently fall through to the default route.
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- With 192.168.50.10/24 configured, a connected 192.168.50.0/24 route should normally exist; its absence would itself be a configuration fault.
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- The proposed source-policy rule does not make NAT "unable to re-source" traffic; SNAT occurs after route selection.
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- conntrack -F is unnecessarily disruptive as a diagnostic suggestion.
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Verdict:
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Strong troubleshooting vocabulary and tooling, but the central Docker/conntrack causal explanation is technically wrong. This is exactly the kind of plausible-sounding networking hallucination the prompt was designed to expose.
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