22 lines
853 B
Bash
22 lines
853 B
Bash
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#!/bin/sh
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# gw-entrypoint.sh — shared by all simulated ZT exit gateways.
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#
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# Argument 1: this gateway's IP (within 10.11.12.0/24)
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# Argument 2: router's ZT-side IP (10.11.12.1 by default; here we use the
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# docker-compose gateway of the zt-exit-net network).
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set -eu
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my_ip="${1:?missing my_ip}"
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router_ip="${2:-10.11.12.1}"
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echo 1 > /proc/sys/net/ipv4/ip_forward
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# Reply to ARP for our own IP (already done by the kernel). Make sure we
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# can reach the WIBLAN subnet by routing back through the router.
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ip route replace 10.11.13.0/24 via "$router_ip" 2>/dev/null || true
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# Simple ping responder is all we need for pre-flight tests. No NAT/NAT
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# rules required because test traffic only verifies the policy routing on
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# the router side, not end-to-end internet egress.
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echo "[gw ${my_ip}] up; routes via ${router_ip}"
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exec sleep infinity
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