inspect icmp error を設定することで中間ホップの source ip アドレスは変換されなくなります。
設定例 --------------------------------------------------------------------------------------------------
access-list 100 line 10 extended permit icmp any anyclass-map match-all icmp_traffic 2 match access-list 100 policy-map multi-match icmp_inspect class icmp_traffic inspect icmp error
interface vlan 11 ip address 10.11.11.101 255.255.255.0 service-policy input LB service-policy input icmp_inspect no shutdown
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設定後の表示例 --------------------------------------------------------------------------------------------------
$ traceroute 10.13.13.1 traceroute to 10.13.13.1 (10.13.13.1), 30 hops max, 40 byte packets 1 (10.9.9.1) 0.628 ms 0.557 ms 0.573 ms 2 (10.11.11.1) 0.678 ms 1.100 ms 1.305 ms 3 (10.12.12.1) 0.850 ms 1.912 ms 1.524 ms 4 (10.13.13.1) 1.441 ms 0.437 ms 0.494 ms
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