ERROR defguard_gateway::gateway]

[SonikV]

After update to version 1.4.0
defguard-gateway[111783]: [2025-07-02T17:51:47Z ERROR defguard_gateway::gateway] Interface configuration failed: Firewall error: Netlink error: Failed while reading a message from socket: Os { code: 105, kind: Uncategorized, message: "No buffer space available" }

And no stats on dashboard, but vpn work

• Defguard Core version: v1.4.0
• Defguard Gateway version: v1.4.0
  • Operating system and version running the gateway: Debian 12

[SonikV]

solved the problem change Socket Buffer Sizes

[teon]

@SonikV can you elaborate before I close the issue?

[SonikV]

yes, solved problem change setting in sysctl.conf

Socket Buffer Sizes

net.core.rmem_max = 67108864
net.core.wmem_max = 67108864
net.ipv4.tcp_rmem = 4096 87380 67108864
net.ipv4.tcp_wmem = 4096 65536 67108864
net.core.rmem_default = 524288
net.core.wmem_default = 524288

[teon]

@SonikV thank you! Closing then.