Peer block 1 2
Author: l | 2025-04-24
1 IPv6 addresses are available in addition to IPv4 addresses on the server. 2 Peer-to-peer services are blocked on the server. 3 Sending emails is blocked on the server.
Block Peer-to-Peer Connections
Hi Giuseppe,The switch is running rapid-pvst as visible from the show run output "spanning-tree mode rapid-pvst". However, it shows a different result when you do show spanning-tree command. Shouldnt it be showing R-PVST?-------------------------------------------------------------------------------------VLAN0001 Spanning tree enabled protocol "rstp" Root ID Priority 24577 Cost 4 Port 1 (GigabitEthernet1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32769 (priority 32768 sys-id-ext 1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Gi1 Root FWD 4 128.1 P2p Peer(STP) Gi2 Altn BLK 4 128.2 P2p Peer(STP)----------------------------------------------------------------------------------You were right in saying that status of gig1 and 2 will vary depending on the PVST status. On some vlans it shows....VLANXInterface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Gi1 Root FWD 4 128.1 P2p Peer(STP) Gi2 Altn BLK 4 128.2 P2p Peer(STP)and on some...VLAN YGi1 Desg FWD 4 128.1 P2p Peer(STP) Gi2 Root FWD 4 128.2 P2p Peer(STP)Also check this...VLAN ZGi1 Altn BLK 4 128.1 P2p Peer(STP) Gi2 Root FWD 4 128.2 P2p Peer(STP)So is it because of PVST that I see STP block messages appear on the web console?Regards. 1 IPv6 addresses are available in addition to IPv4 addresses on the server. 2 Peer-to-peer services are blocked on the server. 3 Sending emails is blocked on the server. Enabled: interface gigabitethernet 0/0/0 ip address 172.16.1.1 255.0.0.0 ip access-group 1 in ip access-group 2 out!access-list 1 permit 172.25.0.0 0.0.255.255 logaccess-list 1 deny 172.30.0.0 0.0.255.255 log!access-list 2 permit 172.27.3.4 logaccess-list 2 deny 172.17.0.0 0.0.255.255 log If the interface receives 10 packets from 172.25.7.7 and 14 packets from 172.17.23.21, the first log will look like the following: list 1 permit 172.25.7.7 1 packetlist 2 deny 172.17.23.21 1 packet Five minutes later, the console will receive the following log: list 1 permit 172.25.7.7 9 packetslist 2 deny 172.17.23.21 13 packets Note ip access-group 2 out is not applicable for Cisco ASR 900 RSP3 Module. Example: Limiting Debug Output The following sample configuration uses an access list to limit the debug command output. Limiting the debug output restricts the volume of data to what you are interested in, saving you time and resources. Device(config)# ip access-list acl1Device(config-std-nacl)# remark Displays only advertisements for LDP peer in acl1Device(config-std-nacl)# permit host 10.0.0.44Device# debug mpls ldp advertisements peer-acl acl1tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 172.17.0.33tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 172.16.0.31tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 172.22.0.33tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 192.168.0.1tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 192.168.0.3tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 192.168.1.33 Apply Access Control List on Management Interface Table 1. Feature History Feature Name Release Information Feature Description Apply Access Control List on Management Interface Cisco IOS XE Cupertino 17.7.1 This feature enables Access Control Lists (ACLs) to be applied on management interface, Gigabit 0. The ACL configuration on the management interface helps to block ICMP traffic and thus prevents the Denial-of-Service (DoS) attacks. Prior to Cisco IOS XE Cupertino Release 17.7.1, Access Control Lists (ACLs) were only supported on physical interfaces. Starting with Cisco IOS XE Cupertino Release 17.7.1, ACLs are also supported on management interface, Gigabit 0. Restrictions Egress ACL isComments
Hi Giuseppe,The switch is running rapid-pvst as visible from the show run output "spanning-tree mode rapid-pvst". However, it shows a different result when you do show spanning-tree command. Shouldnt it be showing R-PVST?-------------------------------------------------------------------------------------VLAN0001 Spanning tree enabled protocol "rstp" Root ID Priority 24577 Cost 4 Port 1 (GigabitEthernet1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32769 (priority 32768 sys-id-ext 1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300Interface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Gi1 Root FWD 4 128.1 P2p Peer(STP) Gi2 Altn BLK 4 128.2 P2p Peer(STP)----------------------------------------------------------------------------------You were right in saying that status of gig1 and 2 will vary depending on the PVST status. On some vlans it shows....VLANXInterface Role Sts Cost Prio.Nbr Type---------------- ---- --- --------- -------- --------------------------------Gi1 Root FWD 4 128.1 P2p Peer(STP) Gi2 Altn BLK 4 128.2 P2p Peer(STP)and on some...VLAN YGi1 Desg FWD 4 128.1 P2p Peer(STP) Gi2 Root FWD 4 128.2 P2p Peer(STP)Also check this...VLAN ZGi1 Altn BLK 4 128.1 P2p Peer(STP) Gi2 Root FWD 4 128.2 P2p Peer(STP)So is it because of PVST that I see STP block messages appear on the web console?Regards.
2025-04-24Enabled: interface gigabitethernet 0/0/0 ip address 172.16.1.1 255.0.0.0 ip access-group 1 in ip access-group 2 out!access-list 1 permit 172.25.0.0 0.0.255.255 logaccess-list 1 deny 172.30.0.0 0.0.255.255 log!access-list 2 permit 172.27.3.4 logaccess-list 2 deny 172.17.0.0 0.0.255.255 log If the interface receives 10 packets from 172.25.7.7 and 14 packets from 172.17.23.21, the first log will look like the following: list 1 permit 172.25.7.7 1 packetlist 2 deny 172.17.23.21 1 packet Five minutes later, the console will receive the following log: list 1 permit 172.25.7.7 9 packetslist 2 deny 172.17.23.21 13 packets Note ip access-group 2 out is not applicable for Cisco ASR 900 RSP3 Module. Example: Limiting Debug Output The following sample configuration uses an access list to limit the debug command output. Limiting the debug output restricts the volume of data to what you are interested in, saving you time and resources. Device(config)# ip access-list acl1Device(config-std-nacl)# remark Displays only advertisements for LDP peer in acl1Device(config-std-nacl)# permit host 10.0.0.44Device# debug mpls ldp advertisements peer-acl acl1tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 172.17.0.33tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 172.16.0.31tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 172.22.0.33tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 192.168.0.1tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 192.168.0.3tagcon: peer 10.0.0.44:0 (pp 0x60E105BC): advertise 192.168.1.33 Apply Access Control List on Management Interface Table 1. Feature History Feature Name Release Information Feature Description Apply Access Control List on Management Interface Cisco IOS XE Cupertino 17.7.1 This feature enables Access Control Lists (ACLs) to be applied on management interface, Gigabit 0. The ACL configuration on the management interface helps to block ICMP traffic and thus prevents the Denial-of-Service (DoS) attacks. Prior to Cisco IOS XE Cupertino Release 17.7.1, Access Control Lists (ACLs) were only supported on physical interfaces. Starting with Cisco IOS XE Cupertino Release 17.7.1, ACLs are also supported on management interface, Gigabit 0. Restrictions Egress ACL is
2025-04-17Guinness Posts: 4118 Joined: Mon Aug 27, 2007 2:00 am Contact: PeerBlock - block anti-file sharing, ads, spyware, etc. #1 Post by guinness » Wed Aug 05, 2009 11:13 am Do you like or did you like using PeerGuardian2 ( but hated the fact that it hasn't been updated in 2 years? Check out PeerBlock ( is the description from the site so I take no credit for the wording:PeerBlock is a new version (aka a "fork") of the popular Peer Guardian 2 software. It blocks "known bad" computers from accessing yours, for example governments, corporate entities, and those flagged for anti-p2p activities. Peer Block maintains the functionality of the original Peer Guardian 2 program, but includes fixes for various issues that remain unaddressed in the latest (~2 year old) version of PG2.I have download and will be testing but it appears to be the same old setup with most of the annoyances evened out!Name: PeerBlockVersion: 0.9.20Download: donald Posts: 561 Joined: Wed Dec 19, 2007 4:14 am Location: knoxville TN USA Re: PeerBlock #2 Post by donald » Thu Aug 06, 2009 7:56 am Any results yet? Anybody? Guinness?I am sure I am not the only interested person.***************************************update I have failed to extract with Universal Extractor 1.5.0.0I will search for the latest version of Universal Extractor and try again guinness Posts: 4118 Joined: Mon Aug 27, 2007 2:00 am Contact: Re: PeerBlock #3 Post by guinness » Thu Aug 06, 2009 1:32 pm I haven't tested yet to give full
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