A.在MSR-1上配置如下ACL并將其應(yīng)用在MSR-1的GE0/0的inbound方向:;[MSR-1]firewallenable;[MSR-1]aclnumber3000;[MSR-1-acl-adv-3000]rule0denytcpsource192.168.0.10.0.0.255destination1.1.1.20.0.0.3destination-porteqtelnet
B.在MSR-1上配置如下ACL并將其應(yīng)用在MSR-1的GE0/0的outbound方向:;[MSR-1]firewallenable;[MSR-1]aclnumber3000;[MSR-1-acl-adv-3000]rule0denytcpsource192.168.0.20destination1.1.1.20destination-porteqtelnet
C.在MSR-1上配置如下ACL并將其應(yīng)用在MSR-1的S1/0的inbound方向:;[MSR-1]firewallenable;[MSR-1]aclnumber3000;[MSR-1-acl-adv-3000]rule0denytcpsource192.168.0.10.0.0.255destination1.1.1.20destination-porteqtelnet
D.在MSR-1上配置如下ACL并將其應(yīng)用在MSR-1的S1/0的outbound方向:;[MSR-1]firewallenable;[MSR-1]aclnumber3000;[MSR-1-acl-adv-3000]rule0denytcpsource192.168.0.20destination1.1.1.20.0.0.3destination-porteqtelnet