> Hi, > We're running ipfilter v3.4.35 on Solaris 9. The other day we noted > some extremely odd behavior, where the device (applications, OS, and > ipfilter) appeared to be working normally, except that traffic from one > host in particular was not being seen by the box. Its possible the > issue was completely non-ipfilter related, but it makes me scratch my > head as to what was going on... >
Hi Bill, Last time we saw something like this was on Sun Fire V60x/V65x's where the BMC was intercepting traffic before it got to the CPU. (yep, non IP filter related) Haven't seen it with DHCP but, we don't use DHCP for BMC configuration. We saw it with port 623, which is IPMI and SOL related which had the eventual effect of hanging outbound NFS lookups, when the kernel eventually bound to port 623 to make the query. A workaround was to put dummy entries in /etc/services and /etc/inetd.conf to reserve those ports so the kernel would never try to use them. You didn't mention what hardware you tried; but maybe the issue is similar. Check management interface for DHCP configuration option and try disabling it and using static configuration. V20z's etc have a seperate ethernet interface for IPMI management so shouldn't suffer from this issue. Ian D
