目的ping端口

知莘启跃2016-06-12发表PingV7防火墙本地大包不通,小包正常解决办法Ping防火墙本地大包不通,小包正常.
流统确认防火墙已接收到报文,但并未回应.
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检查域间策略配置#security-zonenameUntrustimportinterfaceGigabitEthernet1/0/0#zone-pairsecuritysourceAnydestinationAnyobject-policyapplyiptest#object-policyiptestrule1passservicepingrule2passservicetelnet#2.
域间策略及会话建立相关debug首先定义一个acl,acl匹配的为ping测试的源、目的IP(本次测试源IP为172.
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14,目的IP为防火墙接口IP172.
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24)#acladvanced3010rule0permiticmpsource172.
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140destination172.
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240rule5permiticmpsource172.
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240destination172.
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140#debugobject-policypacketipacl3010ThiscommandisCPUintensiveandmightaffectongoingservices.
Areyousureyouwanttocontinue[Y/N]:ydebugsessionsession-tableallacl3010tmThecurrentterminalisenabledtodisplaylogs.
tdThecurrentterminalisenabledtodisplaydebugginglogs.
从172.
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14这台设备ping大包(以2000Bytes为例):*Jun1210:59:53:9162016H3CSESSION/7/TABLE:-COntext=1;Tuple5(EVENT):172.
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14/11-->172.
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24/2048(ICMP(1))Sessionentrywascreated.
*Jun1210:59:53:9162016H3CSESSION/7/TABLE:-COntext=1;Tuple5(FSM):172.
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14/11-->172.
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24/2048(ICMP(1))FSM:NONE-->ICMP_REQUEST,dir:ORIGIN,PacketType:REQUEST(8)*Jun1210:59:53:9162016H3CFILTER/7/PACKET:-COntext=1;Thepacketispermitted.
Src-ZOne=Untrust(matched=Any),Dst-ZOne=Local(matched=Any);If-In=GigabitEthernet1/0/0(1),If-Out=InLoopBack0(132);PacketInfo:Src-IP=172.
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14,Dst-IP=172.
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24,VPN-Instance=,Src-Port=8,Dst-Port=0,Protocol=ICMP(1),Application=other(1),ObjectPolicy=test,Rule-ID=1.
*Jun1210:59:53:9162016H3CSESSION/7/TABLE:-COntext=1;Tuple5(EVENT):172.
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14/11-->172.
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24/2048(ICMP(1))Sessionentrywasbackuped.
*Jun1210:59:53:9162016H3CFILTER/7/PACKET:-COntext=1;Thepacketisdenied.
Src-ZOne=Untrust(matched=Any),Dst-ZOne=Local(matched=Any);If-In=GigabitEthernet1/0/0(1),If-Out=InLoopBack0(132);PacketInfo:Src-IP=172.
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14,Dst-IP=172.
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24,VPN-Instance=,Src-Port=11,Dst-Port=2048,Protocol=ICMP(1),Application=other(1),ACL=none,Rule-ID=none.
*Jun1210:59:53:9162016H3CFILTER/7/PACKET:-COntext=1;Thepacketisdenied.
Src-ZOne=Untrust(matched=Any),Dst-ZOne=Local(matched=Any);If-In=GigabitEthernet1/0/0(1),If-Out=InLoopBack0(132);PacketInfo:Src-IP=172.
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14,Dst-IP=172.
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24,VPN-Instance=,Src-Port=11,Dst-Port=2048,Protocol=ICMP(1),Application=other(1),ACL=none,Rule-ID=none.
*Jun1210:59:53:9162016H3CFILTER/7/PACKET:-COntext=1;Thepacketisdenied.
Src-ZOne=Untrust(matched=Any),Dst-ZOne=Local(matched=Any);If-In=GigabitEthernet1/0/0(1),If-Out=InLoopBack0(132);PacketInfo:Src-IP=172.
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14,Dst-IP=172.
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24,VPN-Instance=,Src-Port=11,Dst-Port=2048,Protocol=ICMP(1),Application=other(1),ACL=none,Rule-ID=none.
*Jun1210:59:53:9172016H3CSESSION/7/TABLE:-COntext=1;Tuple5(EVENT):172.
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14/11-->172.
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24/2048(ICMP(1))Sessionentrywasdeleted.
*Jun1210:59:53:9502016H3CSESSION/7/TABLE:-COntext=1-Slot=2;Tuple5(EVENT):172.
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14/11-->172.
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24/2048(ICMP(1))Sessionentrywasdeleted.
从debug信息可以看出,有一些被域间策略deny的信息:*Jun1210:59:53:9162016H3CFILTER/7/PACKET:-COntext=1;Thepacketisdenied.
Src-ZOne=Untrust(matched=Any),Dst-ZOne=Local(matched=Any);If-In=GigabitEthernet1/0/0(1),If-Out=InLoopBack0(132);PacketInfo:Src-IP=172.
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14,Dst-IP=172.
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24,VPN-Instance=,Src-Port=11,Dst-Port=2048,Protocol=ICMP(1),Application=other(1),ACL=none,Rule-ID=none.
其中,源端口号是9,目的端口号是2048(0x0800)再回过头来看之前配置的域间策略:object-policyiptestrule1passserviceping放通了ping这个预定义服务,接下来看一下这个ping服务定义的具体内容,指定了icmp的type/code作为源/目的端口[H3C]probe[H3C-probe]displaysysteminternalobject-groupservicedefaultnamepingslot1Serviceobjectgroupping:1object(inuse)0serviceicmp80Ping大包时,分片首包过来,aspf使用type/code作为源/目的端口去匹配对象策略,通过.
*Jun1210:59:53:9162016H3CFILTER/7/PACKET:-COntext=1;Thepacketispermitted.
Src-ZOne=Untrust(matched=Any),Dst-ZOne=Local(matched=Any);If-In=GigabitEthernet1/0/0(1),If-Out=InLoopBack0(132);PacketInfo:Src-IP=172.
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14,Dst-IP=172.
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24,VPN-Instance=,Src-Port=8,Dst-Port=0,Protocol=ICMP(1),Application=other(1),ObjectPolicy=test,Rule-ID=1.
建立会话,这里使用icmpid(11)作为会话源端口,0x0800(2048)作为目的端口*Jun1210:59:53:9162016H3CSESSION/7/TABLE:-COntext=1;Tuple5(EVENT):172.
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14/11-->172.
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24/2048(ICMP(1))Sessionentrywascreated.
后续非首分片过来,不携带icmp头,命中了首包建立的会话,使用会话里携带的源/目的端口去匹配对象策略,没有命中,被丢弃.
*Jun1210:59:53:9162016H3CFILTER/7/PACKET:-COntext=1;Thepacketisdenied.
Src-ZOne=Untrust(matched=Any),Dst-ZOne=Local(matched=Any);If-In=GigabitEthernet1/0/0(1),If-Out=InLoopBack0(132);PacketInfo:Src-IP=172.
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14,Dst-IP=172.
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24,VPN-Instance=,Src-Port=11,Dst-Port=2048,Protocol=ICMP(1),Application=other(1),ACL=none,Rule-ID=none.
规避方法:定义一个icmp服务,然后在策略中调用#object-groupserviceicmp0serviceicmp#object-policyiptestrule1passservicepingrule3passserviceicmp#解决方法:升级软件版本,不同设备的软件版本号见软件版本说明书中解决问题列表.