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Bug 2223655

Summary:	RFE: override ipv6_ra_configs slaac icmpv6 behaviour
Product:	Red Hat Enterprise Linux Fast Datapath	Reporter:	Quique Llorente <ellorent>
Component:	ovn23.06	Assignee:	OVN Team <ovnteam>
Status:	CLOSED WONTFIX	QA Contact:	Jianlin Shi <jishi>
Severity:	unspecified	Docs Contact:
Priority:	medium
Version:	FDP 23.A	CC:	ctrautma, jiji, mmichels
Target Milestone:	---
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2024-02-14 21:16:07 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Quique Llorente 2023-07-18 12:54:13 UTC

Description of problem:

When arp_proxy is configured at a LSP of router type it may work at a default gw at VMs, with IPv4 configuring a DHCPv4Options with the arp_proxy as gateway is enoguh but with IPv6 the router advertisment should be configured to return the arp_proxy address.

One option would be to add another field at "ipv6_ra_configs" to override the LRP network address, something like "override_ra_src_ip" there one can configure the address, this can go a step further and use the arp_proxy field to discover what to override.

It will need to change src_ip of the RA so the dhcpv6 stateful will work as expected and the client will assign the RA src-ip as default gw.

The RA src-ip is configured here https://github.com/ovn-org/ovn/blob/main/northd/northd.c#L12813

Version-Release number of selected component (if applicable):


How reproducible: Always


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Additional info:

Comment 1 Quique Llorente 2023-07-24 07:08:47 UTC

Created a wip for this https://github.com/ovn-org/ovn/pull/205

Comment 2 OVN Bot 2024-02-14 21:16:06 UTC

This issue is being closed as an automatic process due to the issue's age. If you wish to re-open this issue, please do so in Jira (https://issues.redhat.com) in the 'FDP' project. Please be sure to set the component to the latest OVN version where this issue is known to occur. If this is a feature request or improvement, please set the component to 'OVN'.