[c-nsp] list wisdom please, Cisco switches

Mattias Gyllenvarg Mattias.Gyllenvarg at bredband2.se
Wed Jan 16 01:40:20 EST 2013


Added arp inspection too your list.

- dhcp option 82 support
- dhcp snooping
- DAI
- port security
- urpf on first hop
- RA guard / dhcpv6 snooping / ND guard if you're providing ipv6
- broadcast / multicast storm control
- lan broadcast segmentation for session hijack protection
- common L2 domain for public IP address assignment efficiency

- ip arp inspection vlan <vlan-id>


On 15 January 2013 23:09, Nick Hilliard <nick at foobar.org> wrote:

> On 15/01/2013 19:43, Blake Dunlap wrote:
> > Yeah that's the reason. Its not about talking to one another, its about
> > protecting from attacks that could allow snooping on traffic flows, to
> > hijacking.
>
> This is mildly troublesome.  What you really want in your switch is:
>
> - dhcp option 82 support
> - dhcp snooping
> - DAI
> - port security
> - urpf on first hop
> - RA guard / dhcpv6 snooping / ND guard if you're providing ipv6
> - broadcast / multicast storm control
> - lan broadcast segmentation for session hijack protection
> - common L2 domain for public IP address assignment efficiency
>
> note that the last two cannot easily be achieved without per-port dhcp
> filtering.
>
> Nick
>
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*Med Vänliga Hälsningar - Best Regards*

*Mattias Gyllenvarg*
*Nätutveckling*
Bredband2

Tel: +46 406219712


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