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fix: allowlist all CILIUM_ rules for EBPF Host Routing #8977

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Merged
r2k1 merged 2 commits into from
Jul 21, 2026
+2 −0
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fix: allowlist all CILIUM_ rules for EBPF Host Routing #8977

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e8a0200
fix: allowlist all CILIUM_ rules in iptables monitor
QxBytes Jul 14, 2026
2661d39
fix: update filter pattern to fix flaky test
santhoshmprabhu Jul 20, 2026
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2 changes: 2 additions & 0 deletions e2e/validation.go
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Original file line number Diff line number Diff line change
Expand Up @@ -240,6 +240,7 @@ func getIPTablesRulesCompatibleWithEBPFHostRouting() (map[string][]string, []str
"filter": {
`-A FORWARD -d 168.63.129.16/32 -p tcp -m tcp --dport 32526 -j DROP`,
`-A FORWARD -d 168.63.129.16/32 -p tcp -m tcp --dport 80 -j DROP`,
`-A INPUT -p udp --dport 68 -j ACCEPT`,
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},
"mangle": {
`-A FORWARD -d 168\.63\.129\.16/32 -p tcp -m tcp --dport 80 -j DROP`,
Expand Down Expand Up @@ -271,6 +272,7 @@ func getIPTablesRulesCompatibleWithEBPFHostRouting() (map[string][]string, []str
`^-A .* -j IP-MASQ-AGENT`,
`^.*--comment.*cilium:`,
`^.*--comment.*cilium-feeder:`,
`^-A CILIUM_\S+ `,
`-A FORWARD ! -s (?:\d{1,3}\.){3}\d{1,3}/32 -d 169.254.169.254/32 -p tcp -m tcp --dport 80 -m comment --comment "AKS managed: added by AgentBaker ensureIMDSRestriction for IMDS restriction feature" -j DROP`,
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}

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