dhcp-relay: dhcrelay daemon is permantly blocked and not starting #2105
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Signed-off-by: nikos <ntriantafillis@gmail.com>
| {% for (name, prefix) in INTERFACE %} | ||
| {% if prefix != '0.0.0.0/0' %} |
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Is this a special use-case where you actually set the IP to "0.0.0.0"? By default, if there is no IP configured, there should not even be an INTERFACE object, only a PORT object should be present.
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Explicitly setting the IP address to "0.0.0.0" to imply an interface has no IP address is not a clean solution.
In the next week or so, the framework for VRF will be added to SONiC. With this change, the INTERFACES table will contain interfaces without any IP address assigned. Once this change is merged, you should be able to key off of whether or not the interface has an IP address assigned here, which is a more appropriate solution. Please see the design docs here for reference.
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Setting the IP address of an interface to 0.0.0.0 is valid config and all linux cli deals with it and accepts it. Application can also listen on 0.0.0.0 and 0.0.0.0 is also used as source IP (eg DHCP).
Not sure why you think it shouldn't be allowed or why it should be restricted on sonic side.
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Closing this after discussing with Guohan. |
Why I did it Update the sonic-swss submodule. The following are new commits in the submodule. 6dae6b8 Add initial value for weight in overlay nexthops (#2096) d3cd402 [p4rt-tests] Bind response consumer to appl_state_db (#2105) 43e54e5 Fix armhf buildimage artifacts not found issue (#2107) How I did it Update the swss submodule pointer.
What I did In p4rt test scripts, bind response consumer to appl_state_db for consistency. Why I did it In p4orch, the relating notification producer for table P4RT_TABLE is on database appl state db How I verified it Run vstest Details if related notification channel name would be tagged dbId - sonic-net/sonic-swss-common#568
582d740 (HEAD -> 202012, origin/202012) [show] add support for hwstatus in show muxcable status (sonic-net#1961) (sonic-net#2105) Signed-off-by: vaibhav-dahiya <vdahiya@microsoft.com>
Fixes #2092
Problem:
An admin status up interface in config_db.json without an IP address will cause dhcrelay daemon to block permanently and not start.
Fix and verification:
Reproduced and verified manually by running sonic-cfggen -d -t /usr/share/sonic/templates/wait_for_intf.sh.j2 > /usr/bin/wait_for_intf.sh and then running /usr/bin/wait_for_intf.sh.
Regards,
Nikos.-
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