TCP IP Illustrated

Ipforwarding specifies whether the system forwards

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Unformatted text preview: /dev/ip ip_cksum_choice (Debug) Selects between two independent implementations of the IP checksum file:///D|/Documents%20and%20Settings/bigini/Docu...homenet2run/tcpip/tcp-ip-illustrated/append_e.htm (6 of 16) [12/09/2001 14.48.06] Appendix E: Configurable Options algorithm. ip_debug (Debug) Enables printing of debug output by the kernel, if greater than 0. Larger values generate more output. Default is 0. ip_def_ttl Default TTL for outgoing IP datagrams, if not specified by transport layer. Default is 255. ip_forward_directed_broadcasts If 1 (default), received datagrams whose destination address is the directed broadcast address of an attached interface are forwarded as a link-layer broadcast. If 0, these datagrams are silently discarded. ip_forward_src_routed If 1 (default), received datagrams containing a source route option are forwarded. If 0, these datagrams are discarded. ip_forwarding Specifies whether the system forwards incoming IP datagrams: 0 means never forward, 1 means always forward, and 2 (default) means only forward when two or more interfaces are up. ip_icmp_return_data_bytes The number of bytes of data beyond the IP header that are returned in an ICMP error. Default is 64. ip_ignore_delete_time (Debug) Minimum lifetime of an IP routing table entry (IRE). Default is 30 seconds. (This parameter is in seconds, not milliseconds.) ip_ill_status (Read only) Displays the status of each IP lower layer data structure. There is one lower layer structure for each interface. ip_ipif_status (Read only) Displays the status of each IP interface data structure (IP address, subnet mask, etc.). There is one of these structures for each interface. ip_ire_cleanup_interval (Debug) The interval at which the IP routing table entries are scanned for possible deletions. Default is 30000 ms (30 seconds). file:///D|/Documents%20and%20Settings/bigini/Docu...homenet2run/tcpip/tcp-ip-illustrated/append_e.htm (7 of 16) [12/09/2001 14.48.06] Appendix E: Configurable Options ip_ire_flush_interval The interval at which ARP i...
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This test prep was uploaded on 04/04/2014 for the course ECE EL5373 taught by Professor Guoyang during the Spring '12 term at NYU Poly.

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