The 3560E/3750E support uRPF as per docs: http://www.cisco.com/en/US/docs/switches/lan/catalyst3750e_3560e/softwar e/release/12.2_46_se/configuration/guide/swiprout.html#wp1388196 The unsupported command guide looks in error.
-----Original Message----- From: Brandon Ewing [mailto:nicotine@warningg.com] Sent: Saturday, September 13, 2008 11:26 AM To: nanog@nanog.org; saku+nanog@ytti.fi Subject: Re: Cisco uRPF failures
On Thu, Sep 11, 2008 at 08:11:28PM +0300, Saku Ytti wrote:
Sound like these shops are using 3550 as router, which is common for smaller shops, especially in EU. And indeed, 3550 would not do uRPF. (3560E does).
Are you sure? According to the IOS guide for 3560E/3750E, "ip verify" is still an unsupported interface command. I don't have a 3560E handy to test on, but I know that a non-E 3560 refuses it with a notice regarding how verification is not supported by hardware.
-- Brandon