RDKB-66007: iptables error in MAP-T + bridgemode#368
Merged
Conversation
RDKB-66007: Declare postrouting chains for MAPT + bridgemode path
Contributor
There was a problem hiding this comment.
Pull request overview
Addresses RDKB-66007 by preventing iptables-restore errors during IPv4 firewall restarts when MAP‑T is active in bridge mode, by ensuring required MAP‑T NAT chains exist in the “firewall disabled” generation path.
Changes:
- Declare MAP‑T IPv4 postrouting protocol-specific chains (TCP/UDP/ICMP) in the disabled IPv4 firewall NAT table when MAP‑T is ready.
- Ensure POSTROUTING jump to the MAP‑T postrouting chain remains present for the NAT46 interface in this path.
💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.
snayak002c
approved these changes
Jul 16, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
RDKB-66007: iptables error in MAP-T + bridgemode causing increase in SYS_SH_IPTableFW_restart marker
Reason for change: Declare postrouting chains for MAPT + bridgemode path
Test Procedure: Verify there is no iptables error on iptable restart and SNAT rules are getting added when in MAP-T + Bridgemode
Risks: Low
Priority: P1
Signed-off-by: Sivaraj_Sivalingam@comcast.com