Linux-Net Archive: Re: ping gives "Redirect Host
通常の IP 通信は、返信するときは送信元 IP と宛先 IP を入れ替えて送信しますが、このような (ping 以外の) ICMP についてはそうはならず、送信元 IP は『ICMP を生成する NW 機器 (もしくはホスト)』が保有する IP (返信先への NextHop となるインタフェースの IP) となります。 校园网 dns ip 劫持？ - V2EX 2018-8-19 · 问与答 - @ifwangs - 校园网支持 v6，于是想找个同时支持 v4 和 v6 的 dns 在手机上用，就试了下科大的 dns。但是 ping 发现响应来自一个内网 ip。。。[shproc] Process[pid=80 [SOLVED] Problem with ICMP Redirects - Tech Support Forum 2011-8-9 ICMP 'Redirect Host' response to outgoing ping - DD-WRT 2011-2-11
PING 10.XX.0.11 (10.XX.0.11) 56(84) bytes of data. From 10.XX.0.10 icmp_seq=2 Redirect Host(New nexthop: 10.XX.0.11) 64 bytes from 10.XX.0.11: icmp_seq=2 ttl=128
网络错误定位案例 ICMP host *** unreachable - …
EINPROGRESS (Operation now in progress) - …
$ ping -c15 10.1.1.12 PING 10.1.1.12 (10.1.1.12): 56 data bytes Request timeout for icmp_seq 0 92 bytes from router2.mydomain.com (10.1.2.1): Redirect Host(New addr: 10.1.1.12) Vr HL TOS Len ID Flg off TTL Pro cks Src Dst 4 5 00 0054 81d4 0 0000 3f 01 e2b3 10.1.2.20 10.1.1.12 Request timeout for icmp_seq 1 92 bytes from router2.mydomain.com (10 They can communicate to each other, and can ping servers behind them, but not healthily. When pinging from ServerA to a server within serverB's subnet I get the following: # ping 10.0.1.87 PING 10.0.1.87 (10.0.1.87) 56(84) bytes of data. From 169.254.255.1: icmp_seq=1 Redirect Host(New nexthop: 10.0.1.87) Jun 05, 2013 · bash-3.2# ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. From 192.168.1.25: icmp_seq=1 Redirect Host(New nexthop: 192.168.1.1)** 64 bytes from 8.8.8.8: icmp_seq=2 ttl=49 time=75.8 ms 64 bytes from 8.8.8.8: icmp_seq=3 ttl=49 time=76.9 ms 64 bytes from 8.8.8.8: icmp_seq=4 ttl=49 time=75.8 ms ssh: connect to host xxx.xxx.xxx.xx1 port 22: No route to host One more this when I login the serverA then I see the prompt like [userA@Localhost~] # I did not understand that why it shows like above bold text while it should be show as [userA@serverA ~] # Any one has any idea to resolve this issue. updated. I already ping but got the below