H3C二层交换机与3层交换机机链接后无法通过2层管理地址进入

二层配置

version 7.1.070, Release 6126P20 # sysname H3C # telnet server enable # irf mac-address persistent timer irf auto-update enable undo irf link-delay irf member 1 priority 1 # lldp global enable # password-recovery enable # vlan 1 # vlan 10 # vlan 20 # stp global enable # interface NULL0 # interface Vlan-interface1 ip address 192.168.100.3 255.255.255.0

interface GigabitEthernet1/0/48 port link-type trunk port trunk permit vlan all

三层配置

 version 7.1.045, Release 3116 # sysname H3C # telnet server enable # irf mac-address persistent timer irf auto-update enable undo irf link-delay irf member 1 priority 1 # dhcp enable # lldp global enable # password-recovery enable # vlan 1 # vlan 10 # vlan 20 # vlan 30 # vlan 40 # stp global enable # interface NULL0 # interface Vlan-interface1 ip address 192.168.100.2 255.255.255.252 # interface Vlan-interface10 ip address 192.168.10.1 255.255.255.0 # interface Vlan-interface20 ip address 192.168.20.1 255.255.255.0 # interface Vlan-interface30 ip address 192.168.30.1 255.255.255.0 # interface Vlan-interface40 ip address 192.168.40.1 255.255.255.0

interface GigabitEthernet1/0/24 port link-type trunk port trunk permit vlan all

上连防火墙地址是192.168.100.1 ，现在三层100.2也可以正常访问外网，也可以实现telnet接入管理三层，问题是二层100.3下面的终端都正常访问外网，但100.3无法ping通100.2 外网无法telnet到100.3 

求助各位