I took a look at the DCCP references, and I think they're just incrementing the wrong MIB variable -- e.g., it's incrementing ICMP_MIB_INERRORS when the skb length is less than the header indicates. That's not an ICMP_MIB_INERRORS error, that's an IPSTATS_MIB_INHDRERRORS error. ICMP_MIB_INERRORS is when you receive an ICMP error packet; an IP header error is something else entirely.
That's followed by a failed lookup incrementing ICMP_MIB_INERRORS which should be an unknown port error in the transport MIB (assuming it has one-- it's not an ICMP error; could be an IP error, if the address isn't local, rather than unknown port). In SCTP, it appears to have similar problems. SCTP errors are not ICMP errors, though it perhaps should be calling icmp_send() to send one to the offending host for some of the cases. I haven't seen any ICMP-relevant stats correctly referenced in these yet. I don't want to patch them directly, since I can't easily test them; if someone who works with DCCP and SCTP would like to, I'd be happy to review. Any volunteers? +-DLS - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html