ARP(8C) ARP(8C) NAME arp - address resolution display and control SYNOPSIS arp _h_o_s_t_n_a_m_e arp -a [ _v_m_u_n_i_x ] [ _k_m_e_m ] arp -d _h_o_s_t_n_a_m_e arp -s _h_o_s_t_n_a_m_e _e_t_h_e_r__a_d_d_r [ temp ] [ pub ] [ trail ] arp -f _f_i_l_e_n_a_m_e DESCRIPTION The _a_r_p program displays and modifies the Internet-to-Ethernet address translation tables used by the address resolution protocol (_a_r_p(4p)). With no flags, the program displays the current ARP entry for _h_o_s_t_n_a_m_e_. The host may be specified by name or by number, using Internet dot notation. With the -a flag, the program displays all of the current ARP entries by reading the table from the file _k_m_e_m (default /dev/kmem) based on the kernel file _v_m_u_n_i_x (default /vmunix). With the -d flag, a super-user may delete an entry for the host called _h_o_s_t_n_a_m_e_. The -s flag is given to create an ARP entry for the host called _h_o_s_t_‐ _n_a_m_e with the Ethernet address _e_t_h_e_r__a_d_d_r_. The Ethernet address is given as six hex bytes separated by colons. The entry will be perma‐ nent unless the word temp is given in the command. If the word pub is given, the entry will be "published"; i.e., this system will act as an ARP server, responding to requests for _h_o_s_t_n_a_m_e even though the host address is not its own. The word trail indicates that trailer encapsu‐ lations may be sent to this host. The -f flag causes the file _f_i_l_e_n_a_m_e to be read and multiple entries to be set in the ARP tables. Entries in the file should be of the form _h_o_s_t_n_a_m_e _e_t_h_e_r__a_d_d_r [ temp ] [ pub ] [ trail ] with argument meanings as given above. SEE ALSO inet(3N), arp(4P), ifconfig(8C) 4.3 Berkeley Distribution May 20, 1986 ARP(8C)