-- Exhibit -user@host> show security flow session interface ge-0/0/10.0 Session ID. 29, Policy name: to-infrastructure/4, Timeout: 1250, Valid Resource information : FTP ALG, 1, 0
In: 10.1.1.213/61892 --> 10.2.2.20/21;tcp, If: ge-0/0/8.0, Pkts: 25, Bytes: 1242 Out: 10.2.2.20/21 --> 10.1.1.213/61892;tcp, If: ge-0/0/10.0, Pkts: 18, Bytes: 1278 Total sessions: 1
user@host> show interfaces ge-0/0/10 | match zone Security: Zone: infrastructure
user@host> show interfaces ge-0/0/8 | match zone Security: Zone: finance
user@host> show configuration security policies from-zone infrastructure to-zone finance
user@host> show log flow-traceoptions Jun 13 14:44:01 14:44:01.059151:CID-0:RT:SPU received an event,type 112, common:3
Jun 13 14:44:01 14:44:01.059151:CID-0:RT:Rcv packet with rtbl idx 0, cos 0
Jun 13 14:44:01 14:44:01.059151:CID-0:RT:SPU processing spu_flushed_pak, flag: 0x2, mbuf:0x423f6100
Jun 13 14:44:01 14:44:01.060343:CID-0:RT:10.2.2.20/20->10.1.1.213/64313;6> matched filter filter2:
Jun 13 14:44:01 14:44:01.060473:CID-0:RT:packet [64] ipid = 1614, @423fd19c
Jun 13 14:44:01 14:44:01.060473:CID-0:RT:---- flow_process_pkt: (thd 3): flow_ctxt type 15, common flag 0x0, mbuf 0x423fcf80, rtbl_idx = 0
Jun 13 14:44:01 14:44:01.060473:CID-0:RT: flow process pak fast ifl 71 in_ifp ge-0/0/10.0
Jun 13 14:44:01 14:44:01.060473:CID-0:RT: ge-0/0/10.0:10.2.2.20/20->10.1.1.213/64313, tcp, flag 2 syn
Jun 13 14:44:01 14:44:01.060473:CID-0:RT: find flow: table 0x49175b08, hash 34391(0xffff), sa 10.2.2.20, da 10.1.1.213, sp 20, dp 64313, proto 6, tok 8
Jun 13 14:44:01 14:44:01.060473:CID-0:RT: no session found, start first path. in_tunnel - 0, from_cp_flag - 0
Jun 13 14:44:01 14:44:01.060473:CID-0:RT: flow_first_create_session
Jun 13 14:44:01 14:44:01.060473:CID-0:RT:-jsf : preset sess plugin info for session 31 Jun 13 14:44:01 14:44:01.060473:CID-0:RT: Allocating plugin info block for plugin(21)
Jun 13 14:44:01 14:44:01.060473:CID-0:RT:[JSF] set ext handle 0x46389be8 for plugin 21 on session 31
Jun 13 14:44:01 14:44:01.060473:CID-0:RT:asl_usp_get_l3_out_ifp_out_tunnel ASL IPV4 out_ifp = ge-0/0/8.0 for dst:10.1.1.213 in vr_id:0
Jun 13 14:44:01 14:44:01.060473:CID-0:RT:SPU invalid session id 00000000
Jun 13 14:44:01 14:44:01.060473:CID-0:RT: jsf drop pak pid 21, jbuf 0x4fcd7038, release hold 0, sess_id 0
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: After jsf gate hit. sid 0xfb39, pid 0, cookie 0x1f, jbuf 0x15. rc = 1
Jun 13 14:44:01 14:44:01.060761:CID-0:RT:RM populated xlate info for nsp2: 10.1.1.213/64313>10.2.2.20/20out_ifp = ge-0/0/8.0, out_tunnel = 0x0
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_in_dst_nat: in 0/10.0>, out 0/8.0> dst_adr 10.1.1.213, sp 20, dp 64313
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_in_dst_nat: bypassed by RM
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_rule_dst_xlate: bypassed by RM
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_routing: bypassed by RM
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_policy_search: bypassed by RM Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_reverse_mip: bypassed by RM
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_src_xlate: bypassed by RM
Jun 13 14:44:01 14:44:01.060761:CID-0:RT: flow_first_get_out_ifp: bypassed by RM
Jun 13 14:44:01 14:44:01.060761:CID-0:RT:is_loop_pak: No loop: on ifp: ge-0/0/8.0, addr: 10.1.1.213, rtt_idx:0
Jun 13 14:44:01 14:44:01.060761:CID-0:RT:[JSF]Normal interest check. regd plugins 18, enabled impl mask 0x0
Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 2, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 3, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 5, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060761:CID-0:RT:-jsf int check: plugin id 6, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 7, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 8, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 14, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:+++++++++++jsf_test_plugin_data_evh: 3
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 15, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 21, svc_req 0x0, impl mask 0x0. rc 3
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 22, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 25, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 26, svc_req 0x0, impl mask 0x0. rc 2
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf int check: plugin id 27, svc_req 0x0, impl mask 0x0. rc 4
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:[JSF]Plugins(0x0, count 0) enabled for session = 4294967296, impli mask(0x0), post_nat cnt 31 svc req(0x0)
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:[JSF]c2s order list:
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: 21 Jun 13 14:44:01 14:44:01.060975:CID-0:RT:[JSF]s2c order list:
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: 21
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: service lookup identified service 79.
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: flow_first_final_check: in 0/10.0>, out 0/8.0>
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:flow_first_complete_session, pak_ptr: 0x48ae5ba0, nsp: 0x4c38e248, in_tunnel: 0x0
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:construct v4 vector for nsp2
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: existing vector list 82-454e5c90.
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: Session (id:31) created for first pak 82
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: flow_first_install_session======> 0x4c38e248
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: nsp 0x4c38e248, nsp2 0x4c38e2c8
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: make_nsp_ready_no_resolve()
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: route lookup: dest-ip 10.2.2.20 orig ifp ge-0/0/10.0 output_ifp ge-0/0/10.0 orig-zone 8 out-zone 8 vsd 0
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: route to 10.2.2.20 Jun 13 14:44:01 14:44:01.060975:CID-0:RT:Doing jsf sess create notify
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:flow_delete_gate: invoked for gate 0x4c077c24 [id 1000003]
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:gate_start_ageout: ageout started for gate 0x4c077c24
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: jsf sess id ignore. sess 31, pid 21, dir 1, st_buf 0x0.
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: jsf sess id ignore. sess 31, pid 21, dir 2, st_buf 0x0.
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:All plugins have ignored session :31
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: existing vector list 2-454ecbd0.
Jun 13 14:44:01 14:44:01.060975:CID-0:RT: existing vector list 2-454ecbd0.
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:-jsf create notify: plugin id 21. rc 3
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:flow_do_jsf_notify_session_creation(): natp(0x4c38e248): 0 SHORT_CIRCUITED. 0x00000000.
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:no need update ha
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:Installing c2s NP session wing
Jun 13 14:44:01 14:44:01.060975:CID-0:RT:Installing s2c NP session wing Jun 13 14:44:01 14:44:01.061475:CID-0:RT: flow got session.
Jun 13 14:44:01 14:44:01.061475:CID-0:RT: flow session id 31
Jun 13 14:44:01 14:44:01.061475:CID-0:RT: vector bits 0x2 vector 0x454ecbd0
Jun 13 14:44:01 14:44:01.061475:CID-0:RT: tcp flags 0x2, flag 0x2
Jun 13 14:44:01 14:44:01.061475:CID-0:RT: Got syn, 10.2.2.20(20)->10.1.1.213(64313), nspflag 0x1021, 0x20
Jun 13 14:44:01 14:44:01.061475:CID-0:RT:mbuf 0x423fcf80, exit nh 0xa0010
Jun 13 14:44:01 14:44:01.061475:CID-0:RT: ----- flow_process_pkt rc 0x0 (fp rc 0)
-- Exhibit -
Click the Exhibit button.
While troubleshooting a device, you see that it is permitting packets for which it appears there is no policy.
Using the information in the exhibit, what is causing this behavior?
A. It is permitted due to a default permit policy.
B. It is permitted due to a stale policy.
C. It is permitted due to a global policy.
D. It is permitted due to an ALG.
正解:D
質問 2:
-- Exhibit -user@host> show log ike-test ... Jun 13 10:36:52 ike_st_i_cr: Start Jun 13 10:36:52 ike_st_i_cert: Start Jun 13 10:36:52 ike_st_i_private: Start Jun 13 10:36:52 ike_st_o_iD. Start Jun 13 10:36:52 ike_st_o_hash: Start Jun 13 10:36:52 ike_find_pre_shared_key: Find pre shared key key for 172.168.100.2:500, id =
ipv4(udp:500,[0..3]=172.168.100.2) -> 192.168.101.2:500, id = No Id Jun 13 10:36:52 ike_policy_reply_find_pre_shared_key: Start Jun 13 10:36:52 ike_calc_maC. Start, initiator = true, local = true Jun 13 10:36:52 ike_st_o_status_n: Start Jun 13 10:36:52 ike_st_o_private: Start Jun 13 10:36:52 ike_policy_reply_private_payload_out: Start Jun 13 10:36:52 ike_st_o_encrypt: Marking encryption for packet Jun 13 10:36:52 ike_encode_packet: Start, SA = { 0x86b8160b 93a10c7c - c6c3a771 f0475656 } /
00000000, nego = -1
Jun 13 10:36:52 ike_send_packet: Start, send SA = { 86b8160b 93a10c7c - c6c3a771 f0475656},
nego = -1, src = 172.168.100.2:500, dst = 192.168.101.2:500, routing table id = 0
Jun 13 10:36:52 ike_get_sA. Start, SA = { 86b8160b 93a10c7c - c6c3a771 f0475656 } / 4cb03305,
remote = 192.168.101.2:500
Jun 13 10:36:52 ike_sa_finD. Found SA = { 86b8160b 93a10c7c - c6c3a771 f0475656 }
Jun 13 10:36:52 ike_alloc_negotiation: Start, SA = { 86b8160b 93a10c7c - c6c3a771 f0475656}
Jun 13 10:36:52 ike_decode_packet: Start
Jun 13 10:36:52 ike_decode_packet: Start, SA = { 86b8160b 93a10c7c - c6c3a771 f0475656} /
4cb03305, nego = 0
Jun 13 10:36:52 ike_st_i_n: Start, doi = 1, protocol = 1, code = Payload malformed (16), spi[0..16]
= 86b8160b 93a10c7c ..., data[0..113] = 800c0001 80030081 ...
Jun 13 10:36:52 172.168.100.2:500 (Responder) -> 192.168.101.2:500 { 86b8160b 93a10c7c -
c6c3a771 f0475656 [0] / 0x4cb03305 } Info; Notification data has attribute list
Jun 13 10:36:52 172.168.100.2:500 (Responder) -> 192.168.101.2:500 { 86b8160b 93a10c7c -
c6c3a771 f0475656 [0] / 0x4cb03305 } Info; Notify message version = 1
Jun 13 10:36:52 172.168.100.2:500 (Responder) -> 192.168.101.2:500 { 86b8160b 93a10c7c -
c6c3a771 f0475656 [0] / 0x4cb03305 } Info; Offending payload type = 129
Jun 13 10:36:52 172.168.100.2:500 (Responder) -> 192.168.101.2:500 { 86b8160b 93a10c7c
c6c3a771 f0475656 [0] / 0x4cb03305 } Info; Offending payload data offset = 1 Jun 13 10:36:52 172.168.100.2:500 (Responder) -> 192.168.101.2:500 { 86b8160b 93a10c7c c6c3a771 f0475656 [0] / 0x4cb03305 } Info; Error text = Incorrect pre-shared key (Reserved not 0)
Jun 13 10:36:52 172.168.100.2:500 (Responder) -> 192.168.101.2:500 { 86b8160b 93a10c7c
c6c3a771 f0475656 [0] / 0x4cb03305 } Info; Offending message id = 0x00000000 Jun 13 10:36:52 172.168.100.2:500 (Responder) -> 192.168.101.2:500 { 86b8160b 93a10c7c c6c3a771 f0475656 [0] / 0x4cb03305 } Info; Received notify err = Payload malformed (16) to isakmp sa, delete it
...
Jun 13 10:37:07 ike_free_negotiation_info: Start, nego = 0
Jun 13 10:37:07 ike_free_negotiation: Start, nego = 0
Jun 13 10:37:07 ike_retransmit_callback: Start, retransmit SA = { 17ef27d0 508bc5db - 00000000
00000000}, nego = -1 Jun 13 10:37:07 ike_send_packet: Start, retransmit previous packet SA = { 17ef27d0 508bc5db
00000000 00000000}, nego = -1, src = 172.168.100.2:500, dst = 192.168.103.3:500, routing table id = 0 ... Jun 13 10:37:17 ike_free_negotiation_info: Start, nego = 0 Jun 13 10:37:17 ike_free_negotiation: Start, nego = 0 Jun 13 10:37:19 ike_get_sA. Start, SA = { 4326380f a67dbcf3 - 00000000 00000000 } / 00000000,
remote = 192.168.103.2:500 Jun 13 10:37:19 ike_sa_allocate: Start, SA = { 4326380f a67dbcf3 - a8307123 9c0e1f9d } Jun 13 10:37:19 ike_init_isakmp_sA. Start, remote = 192.168.103.2:500, initiator = 0 Jun 13 10:37:19 ike_decode_packet: Start Jun 13 10:37:19 ike_decode_packet: Start, SA = { 4326380f a67dbcf3 - a8307123 9c0e1f9d} /
00000000, nego = -1 Jun 13 10:37:19 ike_decode_payload_sA. Start Jun 13 10:37:19 ike_decode_payload_t: Start, # trans = 2 Jun 13 10:37:19 ike_st_i_viD. VID[0..16] = afcad713 68a1f1c9 ... Jun 13 10:37:19 ike_st_i_viD. VID[0..28] = 69936922 8741c6d4 ...
Jun 13 10:37:19 ike_st_i_viD. VID[0..16] = 27bab5dc 01ea0760 ...
Jun 13 10:37:19 ike_st_i_viD. VID[0..16] = 6105c422 e76847e4 ...
Jun 13 10:37:19 ike_st_i_viD. VID[0..16] = 4485152d 18b6bbcd ...
Jun 13 10:37:19 ike_st_i_viD. VID[0..16] = cd604643 35df21f8 ...
Jun 13 10:37:19 ike_st_i_viD. VID[0..16] = 90cb8091 3ebb696e ...
Jun 13 10:37:19 ike_st_i_viD. VID[0..16] = 7d9419a6 5310ca6f ...
Jun 13 10:37:19 ike_st_i_sa_proposal: Start
Jun 13 10:37:19 ike_isakmp_sa_reply: Start
Jun 13 10:37:19 ike_st_i_cr: Start
Jun 13 10:37:19 ike_st_i_cert: Start
Jun 13 10:37:19 ike_st_i_private: Start
Jun 13 10:37:19 ike_st_o_sa_values: Start
Jun 13 10:37:19 172.168.100.2:500 (Responder) -> 192.168.103.2:500 { 4326380f a67dbcf3 -
a8307123 9c0e1f9d [-1] / 0x00000000 } IP; Error = No proposal chosen (14)
Jun 13 10:37:19 ike_alloc_negotiation: Start, SA = { 4326380f a67dbcf3 - a8307123 9c0e1f9d}
Jun 13 10:37:19 ike_encode_packet: Start, SA = { 0x4326380f a67dbcf3 - a8307123 9c0e1f9d } /
1a8c665d, nego = 0
Jun 13 10:37:19 ike_send_packet: Start, send SA = { 4326380f a67dbcf3 - a8307123 9c0e1f9d}, nego = 0, src = 172.168.100.2:500, dst = 192.168.103.2:500, routing table id = 0 Jun 13 10:37:19 ike_delete_negotiation: Start, SA = { 4326380f a67dbcf3 - a8307123 9c0e1f9d},
nego = 0 -- Exhibit -
Click the Exhibit button.
You are asked to set up an IPsec tunnel to the destination 192.168.103.2. After applying the configuration, you notice in the show security ike security-associations output that the destination stays in a down state.
Referring to exhibit, what is causing the problem?
A. The gateway is incorrect.
B. The IKE policy does not match.
C. The proposal does not match.
D. The preshared key is incorrect.
正解:A
質問 3:
-- Exhibit -
-- Exhibit -Click the Exhibit button. You are troubleshooting a communication problem between a trust zone and an untrust zone in
the network, where PC-1 cannot ping PC-2.
Referring to the exhibit, which configuration change on SRX-1 would resolve this problem? Add a security policy to allow ICMP traffic from the untrust zone to the trust zone.
A. Add an address book entry for address 70.1.1.2.
B. Configure proxy-arp under the [edit security nat] hierarchy.
C. Add a security policy to allow ICMP traffic from the trust zone to the untrust zone.
正解:C
質問 4:
-- Exhibit --
user@host> show configuration security policies from-zone engineering to-zone hr
policy new-policy {
match {
source-address any;
destination-address server1;
application hr-data-feed;
}
then {
permit;
}
}
policy old-policy {
match {
source-address pc1;
destination-address server1;
application any;
}
then {
deny;
log {
session-init;
}
}
}
user@host> show configuration security policies global
user@host> show configuration security address-book | match server1 | display set set security address-book book2 address server1 172.19.55.20/32 set security address-book book3 address server1 172.20.11.18/32
user@host> show configuration security address-book | match pc1 | display set set security address-book book1 address pc1 172.18.21.213/32
user@host> show configuration applications
application hr-data-feed { protocol tcp; destination-port 38888;
}
user@host> run show log flow-traceoptions | no-more Jun 13 15:54:09 host clear-log[2503]: logfile cleared Jun 13 15:54:10 15:54:10.611915:CID-0:RT:172.18.21.213/38362->172.19.55.20/38888;17>
matched filter filter1:
Jun 13 15:54:10 15:54:10.611915:CID-0:RT:packet [40] ipid = 38364, @423e421c
Jun 13 15:54:10 15:54:10.611915:CID-0:RT:---- flow_process_pkt: (thd 3): flow_ctxt type 15, common flag 0x0, mbuf 0x423e4000, rtbl_idx = 0
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: flow process pak fast ifl 70 in_ifp ge-0/0/8.0
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: find flow: table 0x49175b08, hash 9077(0xffff), sa 172.18.21.213, da 172.19.55.20, sp 38362, dp 38888, proto 17, tok 10
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: flow_first_create_session
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: flow_first_in_dst_nat: in 0/8.0>, out A> dst_adr 172.19.55.20, sp 38362, dp 38888
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: chose interface ge-0/0/8.0 as incoming nat if.
Jun 13 15:54:10 15:54:10.611915:CID-0:RT:flow_first_rule_dst_xlate: DST no-xlate: 0.0.0.0(0) to 172.19.55.20(38888)
Jun 13 15:54:10 15:54:10.611915:CID-0:RT:flow_first_routing: vr_id 0, call flow_route_lookup(): src_ip 172.18.21.213, x_dst_ip 172.19.55.20, in ifp ge-0/0/8.0, out ifp N/A sp 38362, dp 38888, ip_proto 17, tos 0
Jun 13 15:54:10 15:54:10.611915:CID-0:RT:Doing DESTINATION addr route-lookup
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: routed (x_dst_ip 172.19.55.20) from engineering (ge-0/0/8.0 in 0) to ge-0/0/10.0, Next-hop: 172.19.55.20
Jun 13 15:54:10 15:54:10.611915:CID-0:RT:flow_first_policy_search: policy search from zone engineering-> zone hr (0x0,0x95da97e8,0x97e8)
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: app 0, timeout 60s, curr ageout 60s
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: Error : get sess plugin info 0x4c390388
Jun 13 15:54:10 15:54:10.611915:CID-0:RT: Error : get sess plugin info 0x4c390388
Jun 13 15:54:10 15:54:10.612416:CID-0:RT: packet dropped, denied by policy
Jun 13 15:54:10 15:54:10.612416:CID-0:RT: denied by policy old-policy(6), dropping pkt
Jun 13 15:54:10 15:54:10.612416:CID-0:RT: packet dropped, policy deny.
Jun 13 15:54:10 15:54:10.612416:CID-0:RT: flow didn't create session, code=-1.
Jun 13 15:54:10 15:54:10.612416:CID-0:RT: ----- flow_process_pkt rc 0x7 (fp rc -1)
-- Exhibit -
Click the Exhibit button.
A user added the new-policy policy to permit traffic. However, they report that the traffic is still not permitted by the device.
Using the information in the exhibit, why is the device denying the traffic?
A. The traffic is the first packet in a flow, but is not a SYN.
B. The traffic does not match the application specified in new-policy.
C. The traffic does not match the address book entry used in new-policy.
D. The traffic is being denied by the more specific old-policy prior to the device evaluating new-policy.
正解:B
Komesu -
習問題を掲載しているので本番でも動じない実力を養うことができます。Pass4Testさんのおかげです