[GH-ISSUE #140] Can't set --defaultgw while using --interface option #96

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opened 2026-05-05 05:01:37 -06:00 by gitea-mirror · 2 comments

gitea-mirror commented

2026-05-05 05:01:37 -06:00

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Originally created by @xmikos on GitHub (Nov 16, 2015).
Original GitHub issue: https://github.com/netblue30/firejail/issues/140

I want to be able to pass my own veth device to firejail by using --interface=veth_b option, but I am unable to set default gateway in sandbox. When I use --defaultgw=some_address, firejail exits with this error:

Error: option --defaultgw requires at least one network to be configured

Originally created by @xmikos on GitHub (Nov 16, 2015). Original GitHub issue: https://github.com/netblue30/firejail/issues/140 I want to be able to pass my own _veth_ device to firejail by using `--interface=veth_b` option, but I am unable to set default gateway in sandbox. When I use `--defaultgw=some_address`, firejail exits with this error: ``` Error: option --defaultgw requires at least one network to be configured ```

gitea-mirror

2026-05-05 05:01:37 -06:00

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gitea-mirror commented

2026-05-05 05:01:43 -06:00

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@xmikos commented on GitHub (Nov 16, 2015):

I suppose there will be similar problem with --ip option (but at least I can set ip on veth interface before adding it to sandbox, this is not possible with routes).

@xmikos commented on GitHub (Nov 16, 2015): I suppose there will be similar problem with `--ip` option (but at least I can set ip on _veth_ interface before adding it to sandbox, this is not possible with routes).

gitea-mirror commented

2026-05-05 05:01:46 -06:00

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@netblue30 commented on GitHub (Nov 23, 2015):

Fixed --defaultgw. I put --ip and a number of other options on my todo list to go into an future release. Thanks.

@netblue30 commented on GitHub (Nov 23, 2015): Fixed --defaultgw. I put --ip and a number of other options on my todo list to go into an future release. Thanks.

gitea-mirror referenced this issue

2026-05-05 10:03:17 -06:00

[PR #96] [MERGED] fix libtrace for musl libc #3539

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Reference: github-starred/firejail#96

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