Not really sure, but here is a link where I found this: Router(config-if)# ip verify unicast source reachable-via any allow-self-ping
Enables the switch to ping itself or a secondary address http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/121_8aex/swconfi g/secure.htm -----Original Message----- From: Cisco Nuts [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 17, 2002 4:57 PM To: [EMAIL PROTECTED] Subject: ip verify unicast source reachable-via any allow-self-ping [7:32368] Hello, Does anyone know exactly what this command does: # # ip verify unicast source reachable-via any allow-self-ping 108 # It has by some strange reason popped up(??) on some of our routers and we are debating as to how it got there. Doing some research on CCO, I am under the impression that this command prevents DOS attacks(I cannot explain clearly in layman terms though) and has been configured by someone(explainable by the reference to ACL 108) while some of my peers think that it gets put in automatically when the microcode on these 12000GSR's are upgraded? What's happenening is that when we loop up the channelized T3 ports locally, we can ping the local interfaces sometimes and sometimes it does not work(channelized ports on the same card!) Anyone can explain this? Thank you. Regards. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=32374&t=32374 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
