• Journal of Pharmacopuncture
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• v.15 no.1
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• pp.12-17
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• 2012

Objectives: This study was designed to investigate the protective effects of Atractylodis Rhizoma pharmacopuncture (ARP) against acute gastric mucosal lesions induced by compound 48/80 in rats. Methods: The ARP was injected in Joksamni (ST36) and Jungwan (CV12) 1 hr before treatment with compound 48/80. The animals were sacrificed under anesthesia 3 hrs after treatment with compound 48/80. The stomachs were removed, and the amounts of gastric adherent mucus, gastric mucosal hexosamine, thiobarbituric acid reactive substances (TBARS), xanthine oxidase (XO), and superoxide dismutase (SOD) were measured. Also, histological examination were performed. Results: Gastric adherent mucus, gastric mucosal hexosamine and histological defects of gastric mucosa declined significantly after ARP treatment. Changes in gastric mucosal TBARS were also reduced by ARP treatment, but this result was not statistically significant. ARP treatment did not change the XO and the SOD activities. Conclusions: ARP showed protective effects for acute gastric mucosal lesions induced by compound 48/80 in rats. These results suggest that ARP may have protective effects for gastritis.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.3
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• pp.641-648
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• 2013

ARP spoofing is a typical Internet attack, in which an attacker sends data by changing his's MAC address with the other's one. Currently, this attack is usually dealt with separating the attacking PCs infected with ARP spoofing virus, by keeping network devices investigating by the network manager. However, this manual process has some limitations in time and accuracy. This paper proposes a new network management system to replace the effort of network manager who has to keep on inspecting the network. Along with designing an ARP analyzer and a disconnection notifier and adding them into the existing network management system, the proposed system provides a basement to identify and notify the PC infected by an ARP spoofing virus with fast and high accuracy. As a result, it is expected to minimize the network break off and to make easy the network management.

• Proceedings of the IEEK Conference
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• 2004.08c
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• pp.540-543
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• 2004

Address Resolution Protocol (ARP) cache poisoning is a MAC layer attack that can only be carried out when an attacker is connected to the same local network as the target machines. ARP is not a new problem, but wireless network introduces a new attack point and more vulnerable to the attack. The attack on wireless network cannot be detected by current detection tool installed on wired network. In order to detect the ARP poisoning attack, there must be a ARP poisoning detection tool for wireless LAN environment. This paper proposes linux-based ARP poisoning detection system equipped with wireless LAN card and Host AP device driver

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.10a
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• pp.15-18
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• 2018

This paper proposes mechanism to build a economical access control system when a user's host requires block to an external network, such as computer class conducted at educational institutions. The proposed mechanism is to block clients from accessing the external network by using the one of MITM(Man In The Middle) technique, ARP Spoofing. It prevents packets from being forwarded to outside by gateway. So It can build system simply and economically because Client hosts are don't need to install firewall or any extra agent.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05c
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• pp.2237-2240
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• 2003

하나의 물리 망 위에 있는 두 시스템은 상대방의 물리 주소를 알고 있어야만 통신을 할 수 있고. 물리 주소는 통신비용 절감을 위해 ARP를 사용하는 HOST의 ARP cache에 Internet-to-Ethernet Mapping형태로 저장한다. 이러한 ARP cache 구조는 Modification의 많은 취약성을 가진다. 그 중 취약성을 이용한 공격 중 하나인 ARP Redirect Attack은 물리 망 위의 Target Host 패킷이 공격자의 시스템을 통해 게이트웨이까지 가도록 한다. 본 논문은 게이트웨이 및 일반 HOST 시스템으로 구성된 Local Area Network 기반 구조를 내부 공격자 시스템으로부터 다른 내부 시스템의 사용자 정보를 안전하게 게이트웨이까지 보내기 위한 대응 모델을 제안하고자 한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.652-654
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• 2013

ARP 관련 공격은 LAN상에서 MAC 주소의 위조를 통해 공격대상 호스트의 패킷을 가로채어 도청이나 변조를 가능하게 하는 공격 방법 중 하나이다. 이더넷 기술의 기본이 되는 ARP 프로토콜과 이를 기본적으로 사용할 수밖에 없는 공용 네트워크의 급격한 확산은 장차 ARP 관련 공격과 그 피해가 더욱 심각해 질 것으로 예상된다. 따라서 본 논문에서는, 공용 네트워크에서 기본적으로 사용하는 DHCP 프로토콜을 이용한 ARP 관련 공격 탐지 및 복구 솔루션을 제안한다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.11 no.6
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• pp.93-106
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• 2011

In this paper we describe an efficient and easy to use internet stopper, which is called AINS (Automatic Internet Stopper), which uses ARP spoofing scheme. Instead of forwarding packets to router for the case of hacking, in ARP spoofing, the AINS ignores all the packets so that internet stopping operates. The AINS program needs to be installed only in manager computer that does not require additional agent program. In addition to setting manually the stopping computer list, it is able to indentify network nodes automatically by analyzing broadcasting packets. The experimental results show that less than 4 secs for spoofing interval is enough for blocking internet usage regardless the number of computers and therefore network overhead is negligible. The AINS can indentify and control network nodes not only on same subnet but also on different subnet only if they are connected onto same ethernet switch physically. It is being used for an efficient tool for controling internet usage of university computer laboratory and also for an efficient network management.

• BMB Reports
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• v.43 no.5
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• pp.375-381
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• 2010

In this study, the cDNA library of Chang-liver cells was immunoscreened using common ADAMs antibody to obtain ADAM related genes. We found one positive clone that was confirmed as a new gene by Blast, which is an uncharacterized helical and coil protein and processes protease activity, and named protease-related protein 1 (ARP1). The submitted GenBank accession number is AY078070. Molecular characterizations of ARP1 were analyzed with appropriate bioinformatics software. To analyse its expression and function, ARP1 was subcloned into glutathione S-transferase fusion plasmid pGEX-2T and expressed by E. coli system. The in vitro expression product of ARP1 was recognized by common ADAMs antibody with western blot. Interestingly, ARP1 cleaves gelatine at pH9.5, which suggests it is an alkaline protease. Semi-quantitative RT-PCR result indicates that ARP1 mRNA is strongly transcribed in the liver and the treated Chang-liver cells.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06a
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• pp.7-8
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• 2010

• Journal of Physiology & Pathology in Korean Medicine
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• v.16 no.5
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• pp.938-942
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• 2002

We have examined the relaxational response to the water extract of Rheum palmatum L.(ERP) and water extrc alcohol processed Rheum palmatum L.(ARP) in isolated thoracic aorta from sprague dawley (SD) rat. Rat thoracic aort investigated in vessel segments suspended for isometric tension recording by polygraph. Responses to ERP and ARP investigated in vessels precontracted with 5-hydroxytryptamine(5-HT). We found that the thoracic aorta segments respo to ERP and ARP with a dose-dependent vasorelaxation. We found that ; The thoracic aorta segments responded to I and ARP with a dose-dependent vasodilation. The 5-HT induced contraction at 10/sup -4/M were inhibited by 71.7% and a: after addition of the 0.01 g/mL water extract of ERP and ARP. The 5-HT induced contraction at 10/sup -4/M were inhibite 100% after 10/sup -3/M emodin. The concentration of emodin was 0.027% and 0.098% in ERP and ARP. In condusion, ERP ARP induced relaxation in the isolated rat thoracic aorta were composed of dose-dependent relaxation. and it has pi vasodilation.