ARP table growing up with many IPs mapped to the same MAC address
I'm wondering if somebody has ever experienced the same problem and can share some comments. The arp table on our 2811 was growing up with entries mapping various IPs to the same MAC address. We got up to 20 entries with this kind of mapping. 5 to 8 hosts on the network were affrected by this problem. Hosts in questions lost their dhcp address and were not able to get the new one. The problem disapeared after 1 - 2 hours by itself and never happened again so far.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...