I have a problem where a host route deleted from the main route table
remains in the route cache, and routes packets incorrectly, unless an
explicit 'ip route cache flush' is done. But another process needs to
consult the route cache and can't have it completely flushed. I would have
expected that deleting a host route would also explicitly delete just that
route from the cache. Does anyone know if there is a way to make the cahe
automaitcally synchronize with the route table? Failing that, is it
possible to explicitly delete individual routes from the cache?
Please reply/cc aidanpdoyle@xxxxxxxxxxx as I am not a member of the list.
Thanks,
Aidan
My kernel version is 2.6.14.7.
My CONFIG_IP settings:
grep CONFIG_IP include/linux/autoconf.h
#define CONFIG_IP_MULTICAST 1
#define CONFIG_IP_ADVANCED_ROUTER 1
#undef CONFIG_IP_FIB_TRIE
#define CONFIG_IP_FIB_HASH 1
#define CONFIG_IP_MULTIPLE_TABLES 1
#define CONFIG_IP_ROUTE_FWMARK 1
#define CONFIG_IP_ROUTE_MULTIPATH 1
#undef CONFIG_IP_ROUTE_MULTIPATH_CACHED
#define CONFIG_IP_ROUTE_VERBOSE 1
#undef CONFIG_IP_PNP
#define CONFIG_IP_MROUTE 1
#define CONFIG_IP_PIMSM_V1 1
#define CONFIG_IP_PIMSM_V2 1
#undef CONFIG_IP_VS
#undef CONFIG_IPV6
#define CONFIG_IP_NF_CONNTRACK_MODULE 1
#define CONFIG_IP_NF_CT_ACCT 1
#define CONFIG_IP_NF_CONNTRACK_MARK 1
#undef CONFIG_IP_NF_CONNTRACK_EVENTS
#define CONFIG_IP_NF_CT_PROTO_SCTP_MODULE 1
#define CONFIG_IP_NF_FTP_MODULE 1
#define CONFIG_IP_NF_IRC_MODULE 1
#undef CONFIG_IP_NF_NETBIOS_NS
#define CONFIG_IP_NF_TFTP_MODULE 1
#define CONFIG_IP_NF_AMANDA_MODULE 1
#define CONFIG_IP_NF_PPTP_MODULE 1
#define CONFIG_IP_NF_QUEUE_MODULE 1
#define CONFIG_IP_NF_IPTABLES_MODULE 1
#define CONFIG_IP_NF_MATCH_LIMIT_MODULE 1
#define CONFIG_IP_NF_MATCH_IPRANGE_MODULE 1
#define CONFIG_IP_NF_MATCH_MAC_MODULE 1
#define CONFIG_IP_NF_MATCH_PKTTYPE_MODULE 1
#define CONFIG_IP_NF_MATCH_MARK_MODULE 1
#define CONFIG_IP_NF_MATCH_MULTIPORT_MODULE 1
#define CONFIG_IP_NF_MATCH_TOS_MODULE 1
#define CONFIG_IP_NF_MATCH_RECENT_MODULE 1
#define CONFIG_IP_NF_MATCH_ECN_MODULE 1
#define CONFIG_IP_NF_MATCH_DSCP_MODULE 1
#define CONFIG_IP_NF_MATCH_AH_ESP_MODULE 1
#define CONFIG_IP_NF_MATCH_LENGTH_MODULE 1
#define CONFIG_IP_NF_MATCH_TTL_MODULE 1
#define CONFIG_IP_NF_MATCH_TCPMSS_MODULE 1
#define CONFIG_IP_NF_MATCH_HELPER_MODULE 1
#define CONFIG_IP_NF_MATCH_STATE_MODULE 1
#define CONFIG_IP_NF_MATCH_CONNTRACK_MODULE 1
#define CONFIG_IP_NF_MATCH_OWNER_MODULE 1
#define CONFIG_IP_NF_MATCH_ADDRTYPE_MODULE 1
#define CONFIG_IP_NF_MATCH_REALM_MODULE 1
#define CONFIG_IP_NF_MATCH_SCTP_MODULE 1
#undef CONFIG_IP_NF_MATCH_DCCP
#define CONFIG_IP_NF_MATCH_COMMENT_MODULE 1
#define CONFIG_IP_NF_MATCH_CONNMARK_MODULE 1
#define CONFIG_IP_NF_MATCH_CONNBYTES_MODULE 1
#define CONFIG_IP_NF_MATCH_HASHLIMIT_MODULE 1
#undef CONFIG_IP_NF_MATCH_STRING
#define CONFIG_IP_NF_FILTER_MODULE 1
#define CONFIG_IP_NF_TARGET_REJECT_MODULE 1
#define CONFIG_IP_NF_TARGET_LOG_MODULE 1
#define CONFIG_IP_NF_TARGET_ULOG_MODULE 1
#define CONFIG_IP_NF_TARGET_TCPMSS_MODULE 1
#undef CONFIG_IP_NF_TARGET_NFQUEUE
#define CONFIG_IP_NF_NAT_MODULE 1
#define CONFIG_IP_NF_NAT_NEEDED 1
#define CONFIG_IP_NF_TARGET_MASQUERADE_MODULE 1
#define CONFIG_IP_NF_TARGET_REDIRECT_MODULE 1
#define CONFIG_IP_NF_TARGET_NETMAP_MODULE 1
#define CONFIG_IP_NF_TARGET_SAME_MODULE 1
#define CONFIG_IP_NF_NAT_SNMP_BASIC_MODULE 1
#define CONFIG_IP_NF_NAT_IRC_MODULE 1
#define CONFIG_IP_NF_NAT_FTP_MODULE 1
#define CONFIG_IP_NF_NAT_TFTP_MODULE 1
#define CONFIG_IP_NF_NAT_AMANDA_MODULE 1
#define CONFIG_IP_NF_NAT_PPTP_MODULE 1
#define CONFIG_IP_NF_MANGLE_MODULE 1
#define CONFIG_IP_NF_TARGET_TOS_MODULE 1
#define CONFIG_IP_NF_TARGET_ECN_MODULE 1
#define CONFIG_IP_NF_TARGET_DSCP_MODULE 1
#define CONFIG_IP_NF_TARGET_MARK_MODULE 1
#define CONFIG_IP_NF_TARGET_CLASSIFY_MODULE 1
#undef CONFIG_IP_NF_TARGET_TTL
#define CONFIG_IP_NF_TARGET_CONNMARK_MODULE 1
#undef CONFIG_IP_NF_TARGET_CLUSTERIP
#define CONFIG_IP_NF_RAW_MODULE 1
#define CONFIG_IP_NF_TARGET_NOTRACK_MODULE 1
#define CONFIG_IP_NF_ARPTABLES_MODULE 1
#define CONFIG_IP_NF_ARPFILTER_MODULE 1
#define CONFIG_IP_NF_ARP_MANGLE_MODULE 1
#define CONFIG_IP_NF_TARGET_ROUTE_MODULE 1
#undef CONFIG_IP_DCCP
#undef CONFIG_IP_SCTP
#undef CONFIG_IPX
#undef CONFIG_IPMI_HANDLER
haast:linux-2.6$
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