srl-labs
cjunos does not have a default route to the management network
source - https://discord.com/channels/860500297297821756/1153419542060605551/1421836275366887424
The cjunos does not have a default route in the mgmt vrf, so when external systems try reaching it, the return traffic does not work.
The ad-hoc fix is:
admin@re0> configure
Entering configuration mode
[edit]
admin@re0# set routing-instances mgmt_junos routing-options static route 0.0.0.0/0 next-hop 172.20.20.1
It needs to be added to the default template.
@kmo7 is it something you feel like tackling?
Hi Roman,
Sure. It would be great if you could fix it, as I am tied up with another project currently. Thanks for debugging this on a Sunday😊
Kaveh
Juniper Business Use Only From: Roman Dodin @.> Sent: Sunday, September 28, 2025 6:30 AM To: srl-labs/containerlab @.> Cc: Kaveh Moezzi @.>; Mention @.> Subject: [srl-labs/containerlab] cjunos does not have a default route to the management network (Issue #2858)
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[Image removed by sender.]hellt created an issue (srl-labs/containerlab#2858)https://urldefense.com/v3/__https:/github.com/srl-labs/containerlab/issues/2858__;!!NEt6yMaO-gk!DKJh9X8HsUZ6AHkcZFyfPFPrV8SwnH4lMmedKUhVFGL2GpvsiOpG1a0V5i8Q7kMD3LIGjhkb3wOgNgXv-McRhpreEw$
source - https://discord.com/channels/860500297297821756/1153419542060605551/1421836275366887424https://urldefense.com/v3/__https:/discord.com/channels/860500297297821756/1153419542060605551/1421836275366887424__;!!NEt6yMaO-gk!DKJh9X8HsUZ6AHkcZFyfPFPrV8SwnH4lMmedKUhVFGL2GpvsiOpG1a0V5i8Q7kMD3LIGjhkb3wOgNgXv-MdQh-NnfQ$
The cjunos does not have a default route in the mgmt vrf, so when external systems try reaching it, the return traffic does not work.
The ad-hoc fix is:
@.***> configure
Entering configuration mode
[edit]
@.***# set routing-instances mgmt_junos routing-options static route 0.0.0.0/0 next-hop 172.20.20.1
It needs to be added to the default template.
@kmo7https://urldefense.com/v3/__https:/github.com/kmo7__;!!NEt6yMaO-gk!DKJh9X8HsUZ6AHkcZFyfPFPrV8SwnH4lMmedKUhVFGL2GpvsiOpG1a0V5i8Q7kMD3LIGjhkb3wOgNgXv-Mex-9VKfQ$ is it something you feel like tackling?
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