#linux #networking
I know I can do
ip route add ... src <ip> to set the source IP of a route.
But how can I set the preferred IP address the host should respond with when sending an ICMP reply to a traceroute UDP package (it is *not* on the interface the traceroute packet arrives on), without setting it globally on the computer? Do I need some advaced iptables/netfilter rules for that? Is it possible at all?
It should only do so if the "intended" recipient of the traceroute is within a specific subnet.
uvok /
npub1k9…sag6a
2023-08-24 14:38:40
Author Public Key
npub1k90996tz8kj3eljxqqsw0k385zrdu7z8xxh82hsth98f78q38jeqdsag6aPublished at
2023-08-24 14:38:40Event JSON
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"content": "#linux #networking\n\nI know I can do\n\nip route add ... src \u003cip\u003e to set the source IP of a route.\n\nBut how can I set the preferred IP address the host should respond with when sending an ICMP reply to a traceroute UDP package (it is *not* on the interface the traceroute packet arrives on), without setting it globally on the computer? Do I need some advaced iptables/netfilter rules for that? Is it possible at all?\n\nIt should only do so if the \"intended\" recipient of the traceroute is within a specific subnet.",
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