ICMP redirect host alert

["Luo, Feng (Exchange)" <fengluo () bear com>]

I got so many  ICMP redirect host alerts like this:
*************************************
#(1 - 114) [2002-03-08 15:03:05] [arachNIDS/135] [CVE/CVE-1999-0265]  ICMP
redirect host
IPv4: 50.240.4.176 -> 147.107.70.205
      hlen=5 TOS=0 dlen=56 ID=39298 flags=0 offset=0 TTL=30 chksum=61802
ICMP: type=Redirect code=1
      checksum=60583 id= seq=
Payload:  length = 28

000 : 45 00 00 54 27 95 40 00 FC 01 A4 82 93 6B 46 CD   E..T'.@......kF.
010 : AC 1A 2C 3E 08 00 3D 8C 07 8A E7 07               ..,>..=.....

*************************************
50.240.4.176 is the RIPE Whois server (http://www.ripe.net/), 147.107.70.205
is our internal machine. Does anyone know anything about this?

Feng 


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